AthenaEizou RD-914 His brother, Hirokazu, who has lost his job and has her brother's house sit down

My older brother is a long-term business trip repeatedly due to work relationship. Meanwhile, my brother 's daughter - Kazu Hazuki and two others became more clear. And while seeing the figure of his brother who is doing hard without taking rest from housework, Hirokazu finally noticed .... My brother ... is terribly a nice ass! ! In other words, it is the use of the waist, the complete, all, no-ass, making all adult boys peace. 仕事を失って、兄の家に居候させてもらっている弟・ヒロカズ。兄は仕事の関係上、長期出張を繰り返す日々。そんな中、兄の嫁・羽月希と二人っきりになることも多くなった。そして、家事を休まず一所懸命にこなしている兄嫁の姿を見ているうちに、ヒロカズは遂に気付いてしまったのだった…。兄嫁が…とんでもなく美尻である事を！！すなわちそれは、すべての成人男子を平伏させる、完・全・無・ケツの、腰使い。