Serie includes 28 albums .
Yoru ni Oborenu Hoshizora | A Sky of Unfading Stars
贄殿下
naburi-denka
Tenshi Kokushoku San
Tenshi Kokushoku Ni
Joou Heika to Koi Wazurai
Aishiau ni wa Hayasugiru
Aishiau ni wa Hayasugiru.
I'm yours
Yume no Tsuzuki | The Continuation of a Dream
Okaeri, Sekai.