Have I become the younger sister of the ecchi hero?

How does it usually happen? I fell, woke up, and got a harem into the / But this time it's not so simple. Several points, of course, coincide, but... Is it possible to have a harem for a girl in ecchi harems when there are only girls around? And my brother somehow looks suspiciously like the main character of this madhouse. Well, what can I do, eh?br / Get on the pat