1+1
Also known as: いち たす いち · 일 플러스 일 · 1 + 1 · Ichi Tasu Ichi · sister and brother complex
Comedy, Romance, Shoujo
Fujisaki Mao
From Lovers Dream: It's about a girl who falls in love with her little brother. She thinks it's bad, but the two of them learn that they are not related by blood.