There's this manga that I read awhile back, its about a college student having his three new step brothers move in and they all hate the guy at first (though one is kind enough) even though the main guy is sweet to them. the MC wins over the youngest first,I think, and then the oldest (the one that was kind) started to bully him with his friends. I didn't get to where the middle child was won over. Does anybody know the name to this?

Anitsuu!?

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