The main character, Sota, is a flip and luck pusher.
One day, 3 sisters who are his friends from the *hood tell him that
they are Satan's *ren who are left in the human world.
They ask him for help, which is to choose one of them and make *ren with her, as not to break their *line.
Sota, surprised, chooses Elis, kind and sweet big sister with big breasts.
And this is
the beginning of Sota's maternal and sweet newly-wed life with a princess!

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