Aina

アイナ

Ovan's younger sister.
Aina looks like a young girl with blue hair, wearing elegant white Gothic Lolita-style attire that shares some minor similarities with Ovan's outfit. According to Piros the 3rd, her character costume does not officially exist, and she is considered a cheat character.
Aina is a very sweet girl who cares deeply for her brother and her friends. However, she can also be quite immature and tends to lash out at others when upset. Her deepest desire is to live with her brother Ovan in the real world, just as she does in "The World".