Iji Care ~Noel-kun no Gohoushi Nikki~

The protagonist is the heir to a wealthy family. However, due to his youthful features, he is often mistaken for a girl. Weak-willed, can't even treat his own maids with firmness. He's in no shape to be the family's head.
His father proposes that he train as a servant at a friend's mansion.

However, the daughter, maids, and even the mistress of the house bully him there, provide gentle consolation, take advantage of his body...

Will he really be able to become strong here?