Deserves 1 star for the shitty and rushed and nonsensical ending, but for the sake of the rest of the story, I'll give it 3 stars. So DISAPPOINTED with this one. Not recommending.
It definitely has a happy, wholesome ending. But I don't know why my heart aches. There's this sense of melancholy I can't get rid of. This manga is a work of art, for real. 10/10 good job mori-sensei.
It can't end here! Nope!