Volumes 5, 6, 7, 8, 9, and 10 are first editions! All of the paperback books have sticker residue on the back, indicating they are used. It is likely that they were purchased used. I Fell in Love with My Sister Price: ¥429 #Manga #COMIC Iku has a twin brother, Yori, who doesn't look like her. He's handsome! Smart! And athletic! One night, Iku, who secretly had a complex about Yori, is suddenly kissed by him while she's sleeping...