After several years of living together, he had gotten used to arguing with his wife and three weeks had passed since she returned to her parents' house. While I was complaining alone, I received a phone call from Hibiki, my childhood friend. We talked about meeting each other after a long time, so I invited Hibiki to my house. While immersed in memories, I pushed Hibiki down because I was so disappointed. Kissing is not good… But what if it's something else? When asked, he neither denied nor confirmed with a red face. And if it is only 3 cm, then it is not cheating and a twisted infidelity relationship begins.