Summary Odu-kun no Vita Sexualis from Kainu Manga
Odu-kun no Vita Sexualis summary: 30 year-old Odu is feeling left out. His friends are slowly marrying off and with his tiny salary as a video store clerk, he can't afford to go on trips with them when they can all hang out. Oh, and just to top it all off, his popular friend Araragi just found out Odu's most embarrassing secret... Odu's still a virgin at 30, but maybe it's not so bad after all cause Araragi's never been with a girl either?