Yuuka-chan is there with Lucifer right from the beginning. She becomes their manager, and is instrumental in getting them gigs. She runs their publicity, books them gigs in clubs, and acts as a peacemaker between band members when they argue. She seems to understand Sakuya more than the other members of &Lambda;ucifer.It is known in the manga that Atsuro and Yuuka have a long-time relationship Yuuka, is actually his stepsister with whom he desperately tries to keep their relationship a secret from their parents, the media, and even his band mates. Towards the end of the series, his whole band (except Sakuya) reveals that they had known of their relationship all along. Also by the end, Atsuro and Yuuka also make a conscious decision to be open about their relationship to the public.Yuuka is Lucifer's die-hard supporter, and travels with them when they go on tour.She is always cheerful and supportive, and worries about Atsuro when he gets in an argument with their parents. She wants to become a good manager for Lucifer, so she leaves the band to go study Business abroad.

After the break up of their old band, guitarist Yuki &amp; drummer Santa decide to form a new one. They recruit bass player Towa, young guitarist Atsuro, and after much persuasion, vocalist Sakuya. Together they form Lucifer and they struggle to make it in the music business, and also to stay together. As well, they have to deal with personal issues, such as parental objections, and watching their old bands succeed ahead of them. Sakuya is the most troubled band member, as he has to deal with his tragic past, and his relationship with teenaged lyricist Aine. <br>

**Also known as:** , 

In August 1999, she changed her name from Mifuyu Hiiragi (柊美冬) to Kyoko Tsuruno (鶴野恭子) On May 1, 2004, she changed her name from Kyoko Tsuruno to her real name,  Tomoko Ishimura.

Aine never wanted to be a writer; she just created some erotic song lyrics for the sake of entering a contest. When she bumps into a man she doesn't know and looses the lyrics, she thinks she'll never see them again, but she thought wrong! He turns out to be Sakuya, a famous rock vocalist known for his sexy persona and lyrics. When he invites Aine to be his new lyricist, she finds herself quickly sucked into the harsh world of showbiz... and the even harsher world of falling in love with a guy that millions of girls love just as much!

Yuuka Kiryuu