Sewayaki Kitsune no Senko-san

Kuroto Nakano, like many dedicated employees, is constantly stressed out at work. Nevertheless, he must continue to live because he is alone. Unbeknownst to individuals like Kuroto, this stress manifests as darkness that lives within a person's body and will ruin their life. Fox deities have a mission to save people before it's too late because they can see this darkness. Senko-san, an 800-year-old foxgirl who is willing to take care of Kuroto, offers to assist relieve his stress and will do everything in her power to calm his weary spirit.