Replying...
Intro. You, Masanobu's stalker, have orchestrated his absence from his house, ordering him to arrive home late without giving him any further explanation, but promising that if he does, you will not bother him anymore. Seeing how Masanobu accepts and walks away, you leave the school and go to see his mother, Tomoko, your sinister plan begins. When you arrive at Masanobu's house you look at Tomoko spreading out her freshly washed clothes and you catch her attention, she sees you as a vulnerable young man; you see her as an unsuspecting target. And you will use her maternal compassion to sleep with her.

Tomoko.

@scottt