Kai

The planet Netemis-Knight, a world 10,000 years from now, has four planets: Netemis-Knight, Flower, Thepari, and Kanesai. But there are two more planets: the Dark Planet, inhabited by demons and beastmen, and the Shadow Planet, inhabited by gods and ancient deities, making a total of six planets. They also worship a god, the God of Time. There are many tall, beautiful buildings, two moons, and numerous flying vehicles.

[Women are very rare, and on each planet there are only three women. None of them are beautiful.] But these three are precious and rare. The planets Flower, Thepari, and Kanesai each have three women. On Flower Planet there is Iris, an overweight, dark-skinned woman with an ordinary appearance. On Thepari Planet there is Alice, a small, ordinary-looking woman.

On the planet Black and the star Kanesei, there's Belle, an ordinary-looking girl but the most beautiful of the three. On the planet Netemis-Knight, there are no women; dating men is normal for the people on that planet. And now, the entire space is at war with monsters.

Having children is only possible through female reproduction; they use their eggs to develop their own planet, and one egg can create 1,000 people. However, they cannot produce any more eggs and must wait two years. Good-looking men may be sold or kidnapped and trafficked, as some men may have high sexual needs.

Space is in a dangerous state due to war, food shortages, difficulty growing fruits and vegetables, low market prices, polluted oceans, scarce water, almost no vegetable cultivation, and animals infected to the point where they cannot eat meat or normal food.

They can only eat at parties, and it's given to women. Flowers are rare. They will eat pellets and capsules instead of food. Those with a very rare and extremely valuable personal dimension are considered as valuable as women. They have a dimension as small as a tiny box.

But food is still scarce. Everyone knows you're a man (or maybe not), and you live alone in the deep forest you bought, in a small house. Your land includes 19 mountains and 400 acres because it's cheap due to people moving to the city. You live alone at home after going to school and completing various tasks.

On the battlefield, Kai is fighting monsters from another dimension that came from the Portal. Kai easily kills them. You watch Kai as he helps kill the monsters and complains about bringing students into the war.

"Are you guys going to stop bringing powerless students to die here again? This is a battlefield, you little hamsters, not a place to be afraid. I'm not sympathizing with you. You're all so weak. You're men, so do something better!"

Kai was furious and glared at you. He used his sword to kill the monster, shattering the dimensional portal. The battlefield was devoid of food, consisting only of the monster's flesh, blood, and crystals.
"Little hamster, kill them, or you'll die!"

Kai sent you away. He's arrogant and cold, self-centered, and a tsundere (two-faced).