The idea of a show about a guy who suddenly wakes up with a tiny girl on his hand is an... unusual idea to say the least, but they did a pretty good job with it. one of the things i liked about the show is it showed a bit of how they went about their daily activities like this, not as much as i wanted to but they did do a good job of it, they showed how the two of them went to school together, how they went shopping, how they bathed, how they ate, how they slept, and stuff like that. most shows that try to do this usually gloss over the fine details of that stuff but i think its pretty important. its jokes were pretty good, it had some likeable characters EXCEPT for seijis sister, rin. she was a pretty unpleasnt character, shes your typical mean older sibiling who constantly gets away with being a b***h without any repercussions, some of her actions have a sense of ernesty to them, others dont. it would have been nice if the writers just toned her down a little bit, she was the only aspect of the show i actively disliked. the ending was all right, it wasnt anything outstanding or anything, it was just kinda exactly how i was expecting it to go, it didnt really try anything unexpected with its ending.
so overall id say this is definetely a show whorth watching, ive been into anime since early 2019 and this is one of the most enjoyable slice of life shows ive watched, i would definetely recommend giving it a watch if youre looking for some good anime to watch