``It'' started with my younger sister's first period. For 10 years, my brother, who became a recluse, sucked his sister's breasts like a baby, kneading her big G-cup breasts, and kneading her developing sensitive nipples. Midsummer breastfeeding handjob. Pretending to breastfeed. Goodbye sex. Breastfeeding sex at Christmas...A slightly strange AV that realistically depicts the abnormal daily life of a family.