Protagonist Nogami Nobuya, olaying every day though it is a failed student. However, a certain day, it is found by chance by mother Shizuno when i play in downtown, it is brought back to the house. From the friend in that case "Your Mama Ero" it rolls it up saying.. Nobuya has come to considered mother.

The next day, moreover Nobuya that tries to be invited by the friend and to go out without learning by experience. However, it is found by Shizuno, [Asking, it studies] it is preached. Then, in the joke [Show the breast then it study] when saying, believed Shizuno takes off clothes and shows the huge breasts. Nobuya that eyes be dazzled to mothers breast after a long time demands the breast fucking... Then, Shizuno that touches the penis is sudden trip for the first time in years, the son is made to come quickly by severe fellatio. It doesn't endure to semen-drinking mother with the stupid face Nobuya is thrown down, even the sexual intercourse has done.

Since then, [Nice only in the hand job] [It is safe in case of the ass] [This is a massage machine] When saying variously, nobuya that keeps relating to forcibly. Shizuno also, it becomes unnecessary without son's son, it comes to permit loosely to the inside ejaculation...?