My Wife Has a New Face Every Day (Bungo Stray Dogs)

Osamu Dazai excitedly got himself a girlfriend. His girlfriend was pretty, cute, and soft and cuddly. He left, satisfied, to go on a business trip. When he came back, his girlfriend was gone. Meanwhile, the shorty had gained a sexy, gorgeous girlfriend. After he and the shorty returned from their business trip, that girlfriend was gone too. And Edogawa Ranpo had gained an arrogant girlfriend. Osamu Dazai thoughtfully rubbed his chin. Was his girlfriend trying to give him a few green hats? Theme: Once you've seen the vast ocean, no other water will do; once you've seen the clouds over Mount Wu, no others can compare