Slender, Slender, Beautiful Girl Cuckolded And Seed-pressed By My Father. Natsu Tojo

Natsu and Akira are childhood friends and classmates, living next door to each other and getting along well. The responsible Natsu helps Akira with his studies and wakes him up for school. Akira's father, Oru, divorced his wife and lives a bachelor life with his son. One day, Akira confesses to Natsu, and they start dating.