In the cold winter, the brothers and sisters reunite for the first time in a long time and surround themselves with a hot pot, but the sibling quarrel causes the brides to get closer. Azusa approaches Ayano with a drunken momentum. Ayano, who sympathized and accepted at first, is also indecent lily play that is performed while her husband is not there, and love grows between them. At-home drama and complete burning lesbian play that a plump older sister and a horny younger sister unfold!