Seiya's first overnight date with his boyfriend becomes a memorable experience in Atagawa. They meet at the station, then enjoy a fresh seafood lunch at a nearby fishing port. Stopping by a supermarket, they buy beer and share ice cream, deepening their bond. Their accommodation features an open-air bath, where the mood quickly turns erotic. After a toast, they change into yukatas and immediately start having sex. They begin entwined on the futon in the room, then move to the private outdoor bath. Unconcerned about being nearly exposed, their lewd relationship unfolds freely. The boyfriend sucks Seiya's cock, licks his nipples, then penetrates him from behind. The atmosphere shifts intensely, both overwhelmed with excitement. Back in the room, they continue having sex—when Seiya's nipples are stimulated, he moans loudly in pleasure. They engage in 69, passionately taking each other's cocks into their mouths, savoring their filthy, intimate moments together. Next, they switch to missionary position, Seiya relishing his boyfriend's thrusting motions until the boyfriend climaxes first. Seiya reaches orgasm as his nipples are sucked. After catching their breath, they head out for dinner, then relax at the hotel's billiards lounge. Back in the open-air bath, they kiss passionately while Seiya strikes erotic poses, their loving night continuing deep into the hours.