When Kiyoshi drops by his cousin's house on a sunny afternoon, he walks into a scene straight out of a teenage fantasy. Three schoolgirl cousins are sprawled out asleep, their panties peeking out from under their skirts. The moment they wake up to find him at the door, the playful energy shifts. One of them suggests a game of rock-paper-scissors where the loser gets pinned down by the winner. As the roughhousing escalates, Kiyoshi's growing bulge becomes impossible to hide. Embarrassed, he bolts from the room, but the damage is done—the cousins have noticed, and their curiosity is piqued.
Later that day, while tidying up his room, the first cousin corners him. She doesn't waste time with small talk—she wants a kiss and then asks him outright to fuck her. With the others outside doing laundry, they sneak in a quick, taboo encounter right there on the floor. Soon after, the second cousin comes in to arrange his pillows. When Kiyoshi tries to stop her, she blocks him, and her ass accidentally brushes against his cock. That accidental touch turns deliberate as she grinds against him and proposes they hook up too. One by one, each sister finds her way into that same room with their lucky younger relative.
The third cousin takes a different approach: she looks him straight in the eye and says, "Please just fuck me once." He agrees without hesitation. Over the course of one unforgettable day, Kiyoshi ends up sleeping with all three of his horny schoolgirl cousins. This is pure incest-themed JAV fantasy starring Misa Suzumi, Yuna Asahi, and Hono Ukumori—a must-watch for fans of taboo family roleplay and assertive seduction.