Tonsure (2008)

Yabu is an unattractive and incompetent middle-aged publishing editor. Mika is a beautiful young author who debuted at 18 and has since written two best-sellers. When Yabu commissions some writing from Mika, she suddenly finds herself stricken with writer's block. Somehow, Yabu ends up being confined to Mika's home, resulting in a strange state of cohabitation for the mismatched pair.