Please help me I'm trying to find this manga

The male mc hate Christmas because of his mother accident while he was a kid

Also he kind of be friend a female mc who is very happy go lucky and really like to help people so the girl offer the male mc to teach his little brother about Christmas even though he said no she keeps coming to their house so he warm up to her

And what I can remember is the girl is save from accident because of the guy mother sacrifice herself so yeah the story is pretty much like that

And new info if I'm not mistaken the male mc have black hair and he is very scary looking and fast to get angry

Because there is an extra chapter that show the female mc now is dating the male mc and she tried to help boys get their ball from a tree so she climb up the tree then she having trouble to go back down and then her boyfriend ask her to jump because he will catch her and then the boyfriend said to his girlfriend if you want to help people at least think about yourself also because I don't want to lose you also yeah the extra chapter is something like that