Diabolik lovers x Knb || Crossover ||

Tetsuya Kuroko is the adopted little brother of Yui Komori,
He decided to Visit the place where his big Sister is staying in,

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Hii I thought of this crossover and I didn't found a story about it so... I thought about making this story! This is my first ever book so please give some tips and critism so I can hopefully improve and be better at writing a story!

More Info!

Yui is an over protective big sister here! Tetsuya is a innocent oblivious little baby!!(that sounds cringe but eh you get it right??)

Yea- I'll try to make it seem more realistic even tho I always forgot the storyline of my favorites 😔