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A mermaid that joined Haru's group after he saved her.
Bio Celia is the princess over Mildesta - a village of mermaids. One day Celia decided to explore alternate underwater regions within Southernberg, she suddenly gets stuck under a pile of rocks. Haru was swimming in the area searching for food he say her tail and thought she was a big fish. After freeing her they both freak out and went to get the others. Once reaching the surface Haru told the others of what he say, but the others didn't believe him until Celia surfaced and thanked Haru for saving her. Celia is suddenly very attached to Haru and wishes to be by his side; this is not favored by Elie however whatsoever. Celia then escorted Haru and his friends through her underwater village which she exclaims to be an area of well abundance (at this point the Rave Master and the others are relatively starving from their lack of food). To the immense surprise of Celia, she finds her village in great havoc and ruins. Celia however manages to find her sister, who is the last mermaid in the village that was not stolen. After Celia meets with her sister, she soon is told that every female mermaid was stolen by the Onigami due to the innate magic in their bodies. Thus, both Celia and her sister are the only two that remain. Following this, Celia is now determined to rescue her mermaid friends from Onigami base Syaoran with the help of her new friends. Very soon after Celia and the others leave the Mermaid village ruins, the Rave Master is confronted by their first enemy - a random second rate Oni. During this rather short fight, Celia would release her magic power for the first time to strengthen Haru and the others, who easily defeat the Oni. When Haru and the others effectively invade Syaoran, a major battle ensues between high ranking members of the Onigami Forces, and the group. Soon they are able to free the mermaids. After Haru's battle battle with Gawara things seemed very slimfor him due to Gawara dark bring ability. Celia ordered the mermaids to pass on their energy to Haru to undue Gawara's dark bring ability. Some of the mermaids even give up their life to strengthen the Rave Master.
Celia would remain behind in the mermaid village after the arc finishes.