Mister Melancholy Wants to Live a Serene Life

One is Earth's strongest guardian, the other a supreme being who has cleared countless dimensions and is hiding here. After they start living together, each believes the other is just an ordinary person: one works at the local sub-district office with a salary of only 2500, and the other was just forced to quit his job after accidentally injuring his boss. Now, new interdimensional invaders have appeared... What to do? Having hidden their true identities so painstakingly, when will these two ultimate powerhouses finally reveal their true selves to each other? (Source: Bilibili, translated)