Watari-Kun No Xx Ga Houkai Sunzen

Synopsis

Ever since his parents died, Watari Nao's life has revolved around his little sister. He refrains from club activities in order to spend time with her, as a result of which many of his peers think that he is in love with his sister. But while his sister is happy, Nao is ready to turn a blind eye to all this gossip. But Nao is in the same danger as she was with him six years ago. This danger is a girl who will not leave without what she once owned!