for him. She looks after her younger sister Koyori. She also knows about Matsuri's secret, and is heart-broken when Yorito would not tell her what he really was when he found out. She eventually takes up Yorito's hobby of taking pictures of clouds in the early morning, although she has no more memories of him after his death. Koyori is Mana's little sister who, at the beginning of the story, is staying in the same hospital as Aono, but is soon discharged. Whenever she calls Mana by her given name instead of referring to her as her big sister, Mana strikes her head. Koyori tries to keep Aono company whenever she can and they become good friends over the time Koyori spends in the hospital. Aono also teaches her how to make origami. Koyori is very polite to others even when not required to do so. Takeshi is an older man who is trying to track down Matsuri. When fighting her, he wields a large sword unaffected by Yaka powers with the intention of killing Matsuri and uses ultraviolet rocket-flares to try to immobilize her. His intention to kill her is due to a promise to turn Mayuko back into a human. He was devoted to her when they were the same age: him as a young boy, and she was still alive. He promised to stay by her side until he can bring her back to normal. Mayuko is a young girl with distinctive attire who follows Takeshi; she is also a Yaka. Whenever Takeshi finds her, it is at night when she is sleeping in a cardboard box which changes location around the city. Mayuko has a pompous personality and will not hesitate to talk bad of Takeshi around others, but she worries about Takeshi a lot. She became a Yaka many years before the story began when she was killed during a house robbery. Takeshi has been her support and companion since her death. Sae is the most prominent of Mana's three friends and classmates. She works in the same restaurant as Mana and instantly was attracted to Takeshi when he first started coming to their restaurant due to his goatee. She also works at a convenience store. Sae loves to gossip and often talks to the point where she is ignored by her friends. She has wavy shoulder length hair and wears glasses. (The other two