Goukon ni Ittara Onna ga Inakatta Hanashi

How I Attended an All-Guy's Mixer, The Story of How I Went to a Mixer and There Were No Women There ; 合コンに行ったら女がいなかった話

College student Tokiwa gets invited to a mixer by his female classmate Suo. But when he arrives with his friends, they're greeted by three dazzlingly handsome men?!