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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Kiss, Marry, Conquer: The Monster Girl System

"A World in Ruins"

The five of us—Emma, Mom, Dad, Lina, and I—walk through the streets, searching for shelter, a safe place to stay.

The city is in ruins. Buildings that once stood tall are now reduced to rubble. Cars are overturned, some burnt to a crisp. Bodies—both human and monster—lie scattered across the streets, a gruesome reminder of the nightmare we are living in.

Last night, a second wave of monsters came. The places that somehow remained intact after the first attack? They're nothing but piles of debris now. Our home was no exception.

If not for Emma and Dad, we wouldn't have survived.

No—if not for Emma, we wouldn't have survived.

Emma: The Perfect Housewife?

Emma, in front of my parents, turned into the perfect housewife.

She cooked for us, helped Mom set up a temporary place to sleep, even treated Dad's injuries. She bonded with Lina instantly, playing with her and making sure she wasn't scared.

I sat there, utterly confused.

Emma—shy, awkward Emma—was suddenly acting like she belonged with my family.

I pulled her aside and asked, "What's with this… behavior? You're acting like you've been with my family for years."

"I… I never had a real family," she admitted.

Emma's parents divorced when she was little. They hated each other, and in their fights, they ignored her completely. She was raised by her grandmother—until she passed away when Emma was twelve.

Since then, she had always been alone.

"This is the first time I've ever experienced something like this," she said, smiling softly. "A family. I'm… happy."

Hearing that, I didn't know what to say. I had known Emma for five years, but I never knew she felt this way.

Still, I couldn't focus on that now.

WSO: The Organization That Failed

Remember the World System Organization (WSO)? The people who declared themselves humanity's last hope?

Yeah. Their leader—the guy in the video—died.

The so-called "safe zone" we were in? It's now classified as one of the most dangerous zones.

But with Emma around, it doesn't feel that way.

She walks through the streets, eliminating monsters like they're nothing. Fire and lightning burst from her staff, reducing creatures to ashes in seconds.

While the rest of us struggle to survive, Emma dominates.

Mom and Dad keep praising her, calling her "amazing," "unbelievable," and "a blessing." Lina practically worships her, clinging to her like an older sister.

Emma is walking the parents' daughter-in-law route at full speed. It's like they've already decided she'll be my wife.

But all I can think about is… power.

And most importantly—how will I even survive?

Leon—the student council president—awakened an S-Rank system, the Savior System. It's one of the ten known S-Rank systems in the world.

"I want a system too! Why the hell don't I have one?!"

Emma gently places a hand on my shoulder. "Ethan… even if you never get a system, I'll always be with you. I'll protect you."

I won't let Emma become my shield.

I won't rely on her to keep me safe.

I'll find a way—no matter what it takes.