JK to Inkou Kyoushi 4

Shizuka & Hatsune: A Cheeky Magazine Model and a Lady's Chance Encounter

Hatsune is enjoying her vacation on a cruise. She was brought by Sensei, who she hasn’t had to herself for a while. Tolerating the embarrassment, she shows off her excellent body with a skimpy bikini that Sensei told her to put on. She is filled with joy after Sensei expressed his wish for her to make friends with those of her own age.