Oh man, I am tired of these low quality school themed romance mangas now. Story, trash. Extremely forced progress. Uoooh, you helped me by some xyz bullshit and now I will remember that shit till I die, uoooh. The characters, trash, the likes which blush from the smallest of graze from the opposite sex. The only salvagable thing from this is the kid's cuteness, that too feels annoying as she somehow gets more attached to the mc than her own sister from a single interaction. The author really expected to dangle that aspect like a toy in front of the readers in order for them to getcharmed and forget about all the other bad nuances of the manga. Art is also your default, like those present in any other romance manga with a school setting.