I swore only that person ... ~ The body that gets wet with the backlash to her husband ~ Sho Nishino

Sho Nishino, a married woman working part-time, finds herself in a compromising situation with her young coworker Daiki Uchimura. As they grow closer, Daiki begins to develop feelings for Sho, who is already taken. The story revolves around their forbidden affair, with Daiki eventually winning Sho over and engaging in intense and passionate encounters with her, including oral sex and creampie scenes. Their clandestine relationship must be kept hidden from Sho's husband and the rest of the world.