Serie includes 28 albums .
Niedenka After - Sacrifice Prince After
Okaeri, Sekai.
Sasameku Mizuoto
Shouaku
Tenshi Kokushoku Ni
Tenshi Kokushoku San
Umi to Biyaku
Yoru ni Oborenu Hoshizora | A Sky of Unfading Stars
Yume no Tsuzuki
Yume no Tsuzuki | The Continuation of a Dream
] to aru fūfu no ohanashi