Masaki is a college student living at home with his single mother, Yoshiharu.  Their relationship is more one of roommates rather than a mother and son.  Masaki begins to notice marks on his mother neck at night when she comes that makes him think that she might not be working all the time like she says she is.  She says she not involved with any one, but the marks seem to be increasing.  After having a run in with his sex friend's boyfriend, he sees his mother together with someone that he thinks he recognizes. 

Aka (Red) 
1. Otonari-san kara Delivery 
2. Tatoeba Haha ga Mitsugetsu 
3. Tatoeba Haha ga 28+ 
4. Tatoeba Haha ga 49+ 
5. Tatoeba Haha ga After 
6. Masuo-san no Oshigoto 
7. Mizu Asobi 
8. Tatoeba Kotomi ga 

Kuro (Black) 
1. Private Video 
2. Tatoeba Haha ga 35+ 
3. Minekoshou 
4. Maid Mitsuko no Daibouken 
5. Natsuyasumi (Summer Vacation) 
6. Tatoeba Haha ga EX 
7-8. Tatoeba Haha ga Zero

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