High school swim team member Koike Saki is dating her teacher and coach, Hamaoka Takeshi. One day she finds his secret stash of erotic books and AVs filled with bondage and SM scenes. Shocked at first, the fiery tsundere girl suddenly offers herself instead of punishing him.

Blushing furiously, Saki hands him a towel and orders: “Tie me up… and fuck me!” What begins as simple wrist binding with a towel gradually escalates as the couple explores their desires. Through shy yet bold commands, tender domination, and increasing levels of restraint, Saki discovers her own submissive (M) side while Takeshi learns to embrace his fantasies.

Set against their secret student-teacher relationship and swim club activities, the story mixes cute romance, embarrassment, and intense erotic scenes. Swimsuit elements, paizuri, creampie, and progressive bondage make this a sweet yet spicy “icha-SM” (lovey-dovey SM) tale adapted from Ammolite’s popular PC game. Original voice cast and beautiful character designs by Ichikawa no A add extra charm to this 2018 Pink Pineapple OVA.

Based on the erotic game by Ammolite.