Eishiro Sugata

Eishiro Sugata is a anime/manga character in the Heaven's Lost Property franchise
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The quirky leader of the "New World" club at Tomoki's high school in Sorami, Eishiro Sugata is a supporting character of the anime Heaven's Lost Property. He uses different unconventional means to try to solve issues regarding the "new world" that has mysteriously appeared over the town of Sorami.


A brilliant, yet flawed science student at Sorami High School, Eishiro Sugata is the leader of the New World Discovery Club, his small school group that at the beginning of the franchise, has no members. After Tomoki Sakurai and Sohara Mitsuki inquire to him as to what he thinks is the cause of Tomoki's reoccurring dream, he theorizes that they are linked to his other theory regarding a massive orb of disturbance that is orbiting around the Earth. From that point onward, Eishiro becomes involved in the lives of Tomoki and Sohara and when Pet-Class Angeloid Ikaros falls from Synapse and down to Sorami, his theory regarding the existence of a advanced world within the orb of disturbance is confirmed. He is friends with the cruel and heartless Mikako Satsukitane, who treats only him as her equal and seems to harbor a liking for him, even if he is too distracted or busy to take any notice of her affections.


Eishiro Sugata was created by Suu Minazuki for the Sora no Otoshimono manga and it is not known as to what inspired his creation. Eishiro first appears in Heaven's Lost Property #1 and Sora no Otoshimono: Volume One.

Major Story Arcs

Ikaros and Nymph Arcs

Eishiro Sugata is first introduced in the Sora no Otoshimono manga when Tomoki and Sohara arrive to school and find a massive crowd of panicing students who are looking up towards the top of the highest building on campus. Looking up, Tomoki and Sohara are horrified to see a man standing on the ledge, scanning the horizon as he prepares to launch his newest glider from the roof. Word spreads among the students that this man is no other than the quirky Eishiro Sugata, leader of the New World Discovery Club, and before the students know it, Eishiro grabs his glider and with a running leap, jumps from the roof into the skies. Carried by the stiff breeze blowing in from behind him, Eishiro and his glider maintain flight for a short while before crashing into a thick cluster of trees outside of the campus walls. While the students head off to their classes, the principal of Sorami High is seen rushing off in the direction of where the glider has crashed, in a huff over the latest in a series of dangerous stunts by the eccentric Eishiro. Sitting on a branch high up in one of the trees, the banged up Eishiro sees the test flight as a moderate success, ignoring the trickle of blood that is running down his face as the chimes for classes to start sound.

Back in his small clubroom, Eishiro is disturbed from his research by the arrival of both Sohara Mitsuki and Tomoki Sakurai, who have come to inquire for his "professional" opinion in regards to the mysterious dream that Tomoki keeps having every time that he falls asleep. Intrigued by this, Eishiro begins to theorize as to what these "dreams" could possibly mean, and it does not take him long to link them with his latest research project. He introduces the two of them to his studies in regards to a massive orb of disturbance that is currently orbiting around the Earth, and no matter what the most brillant scientists in the world try, all attempts to discover the source of this disturbance have failed each and every time. Eishiro provides his own theory, stating that the orb in fact holds something that he has been dreaming of since he began his investigation into it: a new world. Stunned by his claims, both Tomoki and Sohara look on in disbelief as Eishiro links the dreams that Tomoki has been constantly having with this existence of a new world within the orb of disturbance. In a huff over just how crazy Eishiro is, Tomoki does not wish to be involved with anything that Eishiro might propose for him to take part in, but before he knows it, his friend Sohara is already telling Eishiro that they would both love to be involved with his efforts to see if it is linked to Tomoki's dreams. When he tells her that he will have nothing to do with it, Sohara threatens him with the prospect of having a brutal karate chop that she uses to pound him into submission, and this essentially forces Tomoki's hand so that he has no choice but to participate.

Since the orb of disturbance will be orbiting directly over the city of Sorami that evening, Eishiro arranges that the three of them should meet up at a special location just outside of Sorami so that they can witness it passing over them at midnight, but problems arise in this plan. Sohara is not allowed to go out past a certain time at night by her concerned parents, and Eishiro gets tangled up with the enraged Principal over the glider stunt that he pulled earlier in the day, resulting in Tomoki being the only one to be at the scheduled meeting place as the midnight hour draws near. Frustrated that no one will be showing up at the designated time, Tomoki plans to leave the meeting place, but is distracted when he receives a desperate call from the panicing Eishiro, who is racing over to the meeting place as fast as he can pedal his worn out bicycle. Eishrio begins to warn Tomoki of a sudden increase in disturbance from the orb, but is cut off by the loss of the signal when the orb moves directly over the slumbering city of Sorami. Looking up, Tomoki comes face to face with the colossal sphere hovering in the night skies, and before he can even try to think of what this giant orb of disturbance could be made of, a streak of white light emerges from the edge of the orb and rushes towards where he is sitting. Panicking, Tomoki gets up and runs for his life as the streaking light slams down into the ground where he had been sitting just moments ago, showing dirt and derbies high into the air as the impact knocks him off of his feet. Tomoki discovers that there is a unconscious girl laying down in the smoldering crater, but this is no ordinary girl, for she has a pair of large ping wings and seems to hardly be injured from the devastating impact. Not wanting to be caught up in this wild mess, Tomoki decides to leave the area, but when massive chunks of shattered marble pillars begin slamming down from the skies into the ground around him, he decides that he should save the poor girl from getting smashed. Back at the crater, he tries to save her, but when a speeding pillar comes racing down from the heavens and towards his location, Tomoki realizes that they are right in it's path and will be killed upon impact. He is stunned to find himself soaring through the air in a shower of pink feathers, and realizes that the girl he was trying to save has just rescued him from the impact of the pillar.

Eishiro finally arrives at the destroyed hillside that was to be the meeting place for watching the orb pass over, and is stunned to find a grimy Tomoki lying underneath a strange girl with wings emerging from her back. Freaking out, Tomoki gets out from underneath the mysterious girl that has introduced herself to him as the Pet-Class Angeloid Ikaros and has bonded to him to become his servant by the chain hanging from her collar. Interested by this development, Eishiro studies Ikaros with his eyes as Tomoki demands to know as to how he can remove the chain that is wrapped tightly around his right hand, knowing that he has school tomorrow and that people might find it odd that he is chained to a girl with wings. Prodding at the thick chains, Eishiro deems that it would take a long time to remove it, and asks Tomoki if he lives with his parents, to which Tomoki responds that he lives alone in his parent's old house in the aftermath of them leaving on a world tour six years ago. Eishiro tells him to go home and get some sleep, for they will try to puzzle out the meaning of these developments tomorrow at school since his theory regarding a new world has been confirmed with the arrival of Ikaros. Weary from the events of that day, Tomoki makes his way back home, the silent Ikaros following closely behind as he heads inside and goes to bed with the thought that perhaps this was all just a bad dream. The following day, Tomoki awakens to discover that the events of last night had actually happened when he finds Ikaros sitting next to his bed and realizes that the chain is still wrapped tightly around his right hand. Tomoki discovers that Ikaros has the ability to grant him whatever he desires through the use of her specialized Transport Card. Getting carried away by his perverted nature, Tomoki makes the first of many bad choices that eventually leads him to become the last human remaining on Earth, alone and isolated due to his perverted and dangerous wishes.

In the aftermath of Tomoki's wild rampage that is corrected by Ikaros after he wishes that none of what had happened that day was real and was just a dream, Tomoki wakes up and is somewhat surprised to find the curious Ikaros on top of him, looking at him with an unsure expression. Going downstairs after Sohara brutally delivers her karate chop on him after she entered his room and found Ikaros on top of him, Tomoki is stunned to find Eishiro Sugata sitting casually at his table, eating a bowl of soup for breakfast as he looks over one of the few old Transport Cards that Ikaros still possesses. Ikaros explains to them that these older model cards have the same powers as the advanced model she used to have, but once the older cards are used on a particular desire, it cannot summon anything from Synapse other than anything else other than the original desire. She also tells them that some older cards have unique abilities that can have unsuspecting side effects, no matter what they are used for. Realizing that they are going to be late for school, Eishiro and Sohara race off towards Sorami High, while Tomoki gets roughly halfway there before realizing that Ikaros is still chained to his right hand and is flying in the air behind him, attracting the attention of the people that Tomoki is running past. Racing back home, Tomoki realizes that they need to resolve the issue of the chain binding him to her, in which she tells him that she can turn the chain invisible. Allowing her to make that change, Tomoki once again races off towards Sorami High, but has to return back to his house once again when he realizes that Ikaros is still following him closely. Telling her that she has to stay at home while he is at school, Tomoki races off towards school, now quite late for his classes as the silent Ikaros sits on the mat in the center of the living room, bummed over not being allowed to follow her master.

After Tomoki accidentally "wishes" for Sohara to wear different panties other than the one with the dog icon that he accidentally sees when she falls over, which results in every pair of panties she tries to put on shooting off and flying away, Eishiro is forced to lend his clubroom for her use as they try to figure out as to why this is happening. Tomoki, beaten and battered from the series of burtal chops that Sohara smashed him with after she discovered that he was the reason for her embarrassing plight, tells the concerned Eishiro that the Transport Card in his pocket had activated after he had seen her panties and thought that she would be better off with different ones, thus accidentally activating the card.

Astraea Arc

Chaos Arc

Hiyori Kazane/Return of Chaos Arcs

Ikaros Melan Arc

Powers & Abilities

While Eishiro Sugata does not possess any special powers or talents, he does specialize in using highly advanced technology and his meticulous methods of exploration in order to not only advance his research, but to come to grips with the technology from the mysterious world of Synapse. Being quite intellectual, he puts together theories and ideas based upon his research or findings, occasionally helping out Tomoki and friends whenever they come to a difficult understanding of certain situations. When Type Beta Electronic Warfare Angeloid Nymph introduces Eishiro to some of the advanced technology that she uses from Synapse, he takes a great interest in it and begins utilizing it to further his exploration and understanding of the mysterious world of Synapse. There is one downside to his genius, however, and it pertains to the fact that some of his methods or ideas usually result in negative side effects for himself or the hapless Tomoki, who falls victim to Eishiro's incorrect logic on more than one occasion.

Voiced by
Name Movies TV Shows
Eric Vale
Tatsuhisa Suzuki
General Information Edit
Name: Eishiro Sugata
Name: 守形 英四郎
Romanji: Sugata Eishirō
Gender: Male
1st manga book:
1st anime episode: Heaven's Lost Property #1
1st anime movie:
Aliases Ei
Recent Movies
Heaven's Lost Property the Movie: The Angeloid of Clockwork

The first movie in the Heaven's Lost Property series, The Angeloid of Clockwork supposedly focuses on the Hiyori Arc from the Sora no Otoshimono manga.

Sora no Otoshimono Final: Eternal My Master

Sora no Otoshimono Final: Eternal My Master is a movie of the Heaven's Lost Property franchise.

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