A rich man was injured (don't remember how) and blinded. The woman had been looking after her younger siblings for a very long time, so she is almost 30ish. I believe they meet at the office she works at and he is her boss. Somehow she ends up going to his house and staying there. He had a son and his ex-wife tried to take custody of the son in order to get money. In order to win the trial, the man married the woman. The woman goes shopping with the son at one point and buys him jeans. At the end, the man feels deceived because he thought she was some old woman. I think this was published by harlequin.

Koi ga Moumoku nara?