You see the main female character naked very early on, and I'm a fan of treating nudity as something human, but you only see her naked. the lead male character is probably the exact opposite of what anyone else would do in any similar situation. These are the two major components of the dream come true gone wrong for any teenage cisgender heterosexual boy that would love to spend a lot of time with the sexy heterosexual cisgender lady. this went down the very run of the mill path of "for some reason the male character's parents are gone from the house and for some reason this grown woman has to live with this teenager."
Feelings are developed, but then awkwardly addressed and or not addressed at all which leads to passive aggressive and petty behavior. Not so much jealously, which is common fair in these kinds of things between the other female characters. It was refreshing to see that, to say the least. and on the other hand, if you're not into everyone always having this happy-go-lucky slapstick romance with a fairy tale ending, this might be your thing. It also airs on the side of caution of being too dramatic and the characters taking themselves too seriously most of the time. Honestly, that is my thing, but otherwise the characters and events are very uneventful. For the theme and what they decide to do with the characters, the manga is too long.
