I fall in love with my sister (1-10 volumes)

Publisher: Shogakukan
Author：Kotomi Aoki
Size: 112mm x 174mm
Number of books: 10
Language: Japanese
Category: Shoujo manga,Manga
Latest Release Date：2005-08-26

Synopsis:
Rai Yuki and Iku were twin siblings who were so close when they were little that they thought "When I grow up, Iku will be my wife" and "I love you more than anyone else in the world". However, as Rai grows up, she begins to see Iku as a girl rather than a sister.
Estimated reading time: 6 hours 22 minutes (according to Manga-zensaku.com)