ある日突然義兄妹になってしまった二人。兄妹とはいえ血は繋がっていない赤の他人。まだ「家族」になりきれない中、家で二人っきりになってしまった。こたつで無防備に過ごす可愛い妹に欲情し我慢できなくなった義兄はこたつの中でサワサワいたずら。妹もその気になってしまい大胆犯行。人気シリーズの総集編11名収録One day, they suddenly became brother and sister-in-law. Although they are brother and sister, they are strangers who are not connected by more than that. While they can't become a "family" yet, they find themselves alone at home. The brother-in-law who cannot stand lusting for the cute sister who spends it defenselessly in the kotatsu mischievously rustles in the kotatsu. The sister is also in the mood, and it is a bold crime. A compilation of 11 of the popular series.
