A showdown between a fallen heiress and a true heiress!
"Um... I was saying..."
"Silence, servant!"
"Xinjun, please don't speak for now."
And so begins the tale of the girls who became Number Spirits for all sorts of reasons, and the secret arts practitioners who wield the power of numbers.
I hope I can write the best story in my heart for everyone. The main plot moves rather slowly at first. The protagonist gradually builds his harem and grows stronger through his own efforts. This isn't a story where every girl falls for the protagonist right from the start.