Most objectionable is the blatant sexualizing of a 10-year-old minor girl, especially in still clips during commercials. In one such clip she is presented with her shirt fully unbuttoned and almost totally open, openly bordering on pedophilia.
The minor girls are often presented partially undressed or totally nude (though details are either blocked or "fogged out". Much of this is due to lack of privacy in a one-room apartment, but occurs throughout the series.
Significant adult open cleavage, side-boob and "bouncing" is displayed throughout the series. Several revealing bathtub scenes are employed, displaying full upper half of breasts.
General sexualization of girls/women of all ages (including minors) employed throughout series.
A grown, heavy-set man is regularly presented as a pseudo-lech, regularly drooling over the cuteness of the two youngest girls and regularly beaten by an adult woman for his attitude. Intended as humor, but not funny.