HS Tutor and Solvalley School as examples.
MC goes bangs a girl, her mom, sisters, aunts, cousins, grandma, multiple people at once sometimes and everyone is fine with it (not necessarily immediately, maybe after some convincing).
Doesn't have to be direct MC incest but it is a bonus.
The least other male characters the better, for all I care MC can be the only man in the planet.
Girls can have fun with each other, just not other guys.
MC goes bangs a girl, her mom, sisters, aunts, cousins, grandma, multiple people at once sometimes and everyone is fine with it (not necessarily immediately, maybe after some convincing).
Doesn't have to be direct MC incest but it is a bonus.
The least other male characters the better, for all I care MC can be the only man in the planet.
Girls can have fun with each other, just not other guys.