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Alternative: 渡くんの××が崩壊寸前 , 渡君的XX即将崩坏 , 와타리군의 XX가 붕괴직전 , Watari-kun no ×× ga Houkai Sunzen , Watari-kun no Batsu Batsu ga Houkai Sunzen , Watari-kun no Batsubatsu ga Houkai Sunzen , Watari-kun's XX Is on the Brink of Collapse
Genres: Harem, Romance, School-life, Seinen,
Author(s): Narumi Naru
Watari-kun no xx ga Houkai Sunzen:
Ever since his parents died, Watari Nao's life has revolved around his little sister. He forgoes club activities for the sake of spending time with her, leading many of his peers to label him a siscon. But as long as his sister's happy, Nao is willing to shut out any unwelcome comments about himself.