The day I went to my friend's house for the first time. Riku falls in love with his friend's mother, Rika. A fierce sex appeal emanates from her busty body that is incomparable to her classmates. Riku sneaks out of the room with some other excuse than saying he's concerned about his friend's mother, and goes to check on Rika in high spirits. It's okay if you can't talk. I just want to be next to the woman I admire. When he gently opens the door, he catches a glimpse of Rika's unexpected and unpleasant behavior.