DaniS_Cook

One moment, life was normal. The next, the world collapsed. Creatures from another dimension poured into Earth, turning everything into a war zone. The monsters? They killed without mercy. Us humans? We were left scrambling for survival.

But me? I’m Ethan Cross, just your average high school student—until I got a system. Yeah, you heard that right. Not some generic power-up or badass transformation. No, my system’s all about bonding with monster girls. And no, this isn’t some fanservice fantasy.

The "SSS Rank Wife System" gave me a job—marry these creatures, get them to like me, and in return, I gain their abilities. And trust me, their abilities are exactly what I need to survive. But, here’s the catch: it’s not enough to just say "I do." My system tracks how much the girls like me. The more they love me, the stronger I get. So, yeah, the quests? They’re… a little intimate. You could say I’m doing my part to save the world, one kiss at a time.

But with the world in chaos and monsters tearing it apart, there’s more to worry about than just finding true love. Other system users are out there, some wanting to help, others wanting to kill. Plus, every girl I marry has her own baggage—some are hesitant, some are hostile. I’ve got a lot of work ahead of me.

Oh, and did I mention? I’m the only one who can understand the monsters’ language. It’s like having a personal translator, but way more dangerous. I’ll need to navigate through betrayals, rivalries, and jealous gods if I want to figure out why this dimensional collapse happened in the first place—and why I was chosen for this insane quest.

But hey, if saving the world means marrying a bunch of monster girls and keeping my love meter high… guess I’ll just have to rise to the challenge. Just don’t expect me to take it too seriously—unless I have to.

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Table of Kiss, Marry, Conquer: The Monster Girl System

Table of contents

Volume 1