When I wake up in the morning with a hangover, Aizawa, a naked fellow employee who sleeps next to me! Why? I don't understand the situation at all! What Aizawa told me when I woke up was the shocking fact that I was attacked by mud at a drinking party! But for some reason, Aizawa, who is usually noisy, seems happy? Furthermore, we shared a secret that no one knew, and the distance between us was shortened.