This manga is... An odd ball. The situation is sweet and kinda wholesome in a way while being complicated as hell.
It's a story about a man in love with his wife, even after she got reincarnated into a 10 yo. It's quite the delicate situation but they try their best to live with it to their fullest. At first, the husband was too enthusiastic and wasn't realising the Blue Whale-sized problem in the tiny 2x2x2m room (understandable when you're witnessing that kind of miracle but still) but he really works on himself without anyone really noticing. He's still not perfect but I'm glad about how he turned out. (That's my opinion, thank you, goodbye)
Also, for all of those people that start to say "The wife's mother's behavior is justified"... What is wrong with you? Even the newest chapters confirmed that she was a horrible mother. What do you need more? "But it's normal in japanese cultu-" No. Anywhere in this world, a normal person would see that she's a bad person, japanese, even asian in general included.
But hey, that's just my opinion.
Story is interesting, characters are good imo, artstyle is just nice for this kind of story. Imma say it's a 8.