Tramps Like Us (2004)

The premise sounds absurd, and it is: after being harassed by her boss, demoted and dumped by her fiancé for his pregnant mistress, Sumire takes in a homeless young man as her pet. What follows is a sharp, funny study of a woman expected to be flawless at work and in love, for whom the strange domestic arrangement becomes the one place she can be soft. Yayoi Ogawa takes the age-gap and power questions seriously instead of playing them for titillation. Tokyopop's 14-volume English edition ran from 2004 to 2008, so this is an older set worth tracking down.