Cleavage - Episode 2

Todo Yuto and Todo Erika live alone. They are children of the same parents, unrelated by blood. When Yuto was a child, his mother died and his father remarried. This is how he got a new mother and a sister, Erika. The mother was kind to the boy but soon passed away as well. Living together, Yuto and Erika begin to love each other as man and woman. However, Sayaka, Yuto's art teacher, draws attention to their relationship, and she has her own sights on Yuto...