Get Stronger by Dating in Demon Slayer

[Decisive to kill] [Multiple female protagonists] [It's hard to save the hope] Traveling through Demon Slayer, the beginning is the final selection of a narrow escape! Feng Linye originally thought that he was cannon fodder who would not survive three chapters. When he was desperate, the god-level system was activated! Bite! Dimensional love strategy system binding! [Novice mission: Strategy for Li Hua Luoxiang Nahu] In this world, there is only one way to become stronger - fall in love! As long as you establish a bond with the female character in the plot, every time your heart flutters, you can exchange it for world-destroying magic skills! While others are still practicing breathing techniques hard, Feng Linye has already used his Zanpakutō to shake the waxing moon! While his teammates are still struggling for life and death, he has activated the animation magic skill to reduce dimensionality! Yesterday's cannon fodder, today's only savior! For the sake of the Butterfly Ninja, he made an oath to kill the two with his sword! For Nezuko, he went deep behind enemy lines to rewrite the final tragedy of Mugen Train! From the flame pillar to the sound pillar, I will make up for all the regrets! It's hard to calm down, I'm here to save you! However, this forbidden power also attracted the crazy covetousness of the Ghost King! Onimusuji Mumei has understood the secret of his power, and a hunt and protection surrounding the girls suddenly broke out! "You want to touch my woman? Are you worthy?" Facing Wu Mei who pointed the blade at his harem, Feng Linye smiled. This time, he wants the Ghost King to know what true despair is!