This mangaka characters always give the mature vibe and their characters development is fantastic.
They end with such a good relationship and a funny couple. I really didn't expect any of what happened nor their past, but I can assure Masato's a baby, and everyone deserves another chance as persons, I'm not gonna say what Masato did wasn't wrong, but I can say he regrets it and wants to become a better person.
Love Nest (Minaduki Yuu)