The Anime Lad
Nitta is a young yakuza member whose room suddenly contains Hina, a girl with extraordinary powers and limited interest in explaining them. She threatens him. He cooperates. They end up living together, which suggests the local housing process has several important gaps in its screening procedure.
Super Eyepatch Fox
Start with a yakuza member alone at home. Make a super-powered girl appear in his room. Let refusal become structurally unwise. Force the strangers to live together. The early comedy runs on threat, silence, and the practical problem of sharing space with someone who can ignore ordinary rules.
Gigguku
Hina appears in Nitta's room with enough power to end the discussion before it starts. He is a yakuza member, yet somehow he is the one negotiating from disaster. That reversal is immediate comic fuel. Their new living arrangement takes an impossible threat and drops it straight into ordinary domestic space!
Father's Basement
A dangerous child forcing her way into a criminal's home sounds built for one repeated joke. The dry timing gives it more room. Nitta cannot intimidate the problem away, while Hina has no reason to respect his normal routine. The first setup works because neither person was looking for the arrangement and neither controls it cleanly.