The charm of a mature beauty, Naho, and a carnivorous beauty, Suzume. The story begins with new employee "Yuichi Hosoda" (Atsushi Hosoda) being guided around various departments by his training supervisor, sales department manager "Naho Ozawa". As they try to pass by the product development department, they are stopped by "Suzume Mino", leading to a conflict among the senior employees over Yuichi. At lunch in the company cafeteria, Suzume sits next to Yuichi, and it's revealed that she and Naho, who are the same age, used to compete for sales results, with Suzume always losing. Suzume confesses that out of jealousy, she stole Naho's fiancé.
After work, Yuichi tells Naho about this conversation, mentioning that Suzume seemed regretful. "What's this, now? After he even got married!" Naho fumes, staggering, and as Yuichi supports her, they lock eyes and she kisses him. Suzume enters and licks the nape of his neck, flaunting her big breasts. Despite Naho's attempts to stop her, Suzume gropes his body, and Naho, provoked, also fondles him. The scene continues with the seniors inserting their tongues into his mouth, licking his nipples, penis, scrotum, and anus.
On the carpet, a handjob, face-sitting while sucking his nipples, and a titjob. He thrusts into Suzume in the front sitting position, cowgirl, reverse cowgirl, and doggy style, into Naho in doggy style and reverse scissors position, and into Suzume in rear-entry position, finishing with a butt ejaculation on Naho in doggy style. He ejaculates on Suzume's belly in the missionary position. The next day, in the product development department, Suzume gives him a handjob, licks his penis and scrotum, performs a nipple rub and titjob. She sucks his penis while squeezing her own big breasts, and he ejaculates in her mouth. Naho enters and gropes his body, intertwines tongues with him, gives a handjob, and sucks his nipples and penis, finishing with a throat ejaculation.
The next day after work, Naho invites him out for a drink, and they also call Suzume. Yuichi and Naho carry the drunk Suzume to her apartment. On the carpet, Suzume inserts her tongue into Yuichi's mouth, licks his nipples, and Naho, tempted, also licks his nipples. The seniors lick his penis and scrotum, give a titjob, and finger his pussy. Suzume grinds her hips in cowgirl and reverse cowgirl positions, and Naho ejaculates on his face in the missionary position. He ejaculates on Suzume's face in the missionary position.
Naho notices a note from Suzume's husband saying "Let's live apart for a while" along with her wedding ring, and the next day, Naho and Suzume reconcile. A week later, Yuichi is transferred to the human resources department. After work, on the sofa in Suzume's apartment, the seniors grope his body, intertwine tongues, lick his nipples, penis, and scrotum, give handjobs and titjobs. He licks their nipples and clits, fingering their pussies. He thrusts into Suzume in the missionary and front sitting positions, into Naho in cowgirl and rear-entry positions, and finishes with a creampie in Suzume in doggy style. He ejaculates inside Naho's vagina in the missionary position.