I'm looking for a yaoi in where someone with black hair who lost a job and is kind of a good-for-nothing. He's eating a meal with someone other friends, two of which are married. There is one friend who is light-haired and has a job. The married friends tell this light-haired friend that they are surprised that he is single since he is successful, but unbeknownst to them he is gay and his type is the black-haired guy. I believe they are friends from college. Eventually the light-haired guy asks the black-haired guy out. In one chapter they go to an amusement park.

Thank you for your help!!

Oda kun no vita sexualis by Kashio