Sweet Vs Home summary:

from BLiss : Summary: Living with a whimsical mother is hard enough for Tatsuya, but he is soon faced with an even bigger challenge; he finds out that his mother has married his teacher, and right after marrying suddenly disappeared. Kind hearted Takaoka, her husband, now has the burden of taking care of Tatsuya. They live together, and get along fine, but as their bond tightens Tatsuya soon starts having an alterior motive... Story also contain a oneshot calll first love