Shinohara

Shinohara is a minor character who shows up in Chainsaw Man: Buddy Stories. He is the tenant who lives in apartment 202 in chapter 3.

Deceased wife
Shinohara was married to his now deceased wife. Unbeknownst to him, these feelings were completely one-sided due to his wife having an affair with her boss, as shown when he is unaffected after his wife gets shot by the Loneliness Fiend.