Yu is Yuki's neighbor - a student who lives alone. Yu has a hobby of wearing T-shaped underwear and even see-through underwear when at home. One time, she forgot to take out the trash, so because she was in such a hurry, Yu didn't have time to change clothes, causing Yuki to see her embarrassing outfit. She seemed to feel more aroused when others saw her. Today Yuki still went to school as usual, but because his penis was made so hard by Yu, he had no choice but to go home to masturbate and then go to school again. As soon as I got home, I saw Yu taking pictures in those thin clothes in the hallway. Seeing that he had been discovered, Yu was so busy running back that he dropped his phone. Being constantly tempted makes Yuki unable to control herself anymore, he takes advantage of returning Yu's phone to possess her. Yu didn't seem to resist but instead obeyed him...
