Shiori is a young girl in Class 6-3 who is madly in love with Shinya Satou.
Shiori, along with her friends Airi Ogata and Mayumi Katou, is obsessed with fellow classmate Shinya Satou, going as far as collecting his sweaty clothes and willingly getting hit with pee-snowballs that they think he made. She is a rival of Futaba Marui, a friend of Shinya's that she believes (due to various misunderstandings) has a crush on him as well and has a more sexually advanced relationship with him than her.
Shiori is a character in both Mitsudomoe anime series, Mitsudomoe and Mitsudomoe Zoryochu!, published by Aniplex with animation production by Bridge and the manga series Mitsudomoe, published by Akita Shoten and serialized in Weekly Shonen Champion. Shiori's original design is credited to manga writer and illustrator Norio Sakurai while her anime version is credited to Takaharu Okuma. Shiori makes her first voiced anime appearance in Mitsudome episode 7, "I Can't Help Being in Love".