Hinoki Sakurai is cosplaying as Meroko Yui from Fullmoon wo Sagashite.
Meroko is a rabbit shinigami with long ears, capable of transforming into an anthropomorphic bunny stuffed toy. Meroko is Takuto's partner and is infatuated with him, though her love is unrequited. She is jealous of Takuto's affection for Mitsuki, and fears that being around Mitsuki will cause Takuto to remember his past, and thus become a ghost. Meroko was Izumi's former partner and was infatuated with him; when Izumi grew tired of her frequent declarations of love, he tricked her into training newcomer Takuto in his place. Although Meroko claims to be in love with Takuto, she eventually realizes that she still loves Izumi. As a human, Meroko was Mitsuki's grandmother's best friend, Moe Rikyo. Mitsuki's grandmother, Fuzuki, was engaged to be married when they both met, and fell in love with a violinist, Seijuro Koga. He loved Fuzuki, however, and eventually became engaged to her, whereupon her former fiancée was passed on to Moe. When Moe caught Fuzuki and the violinist kissing, she ran away, with a fallen over Fuzuki calling out to her. After her own fiancée tried to rape her, Moe killed herself. In the anime adaptation, the connection to Fuzuki and Meroko's human past are never revealed. Meroko and Izumi become partners again in the manga. In the anime Meroko becomes a ghost to save Takuto but she instead becomes a angel and leads Mitsuki to Takuto using the rabbit charm.