MTL - The Legend of the Ghost Concubine - Chapter 223 : Bathing, I was seen by the ghost king.

All it takes is one monster for the world to go to ruins.Life as Nadine knows it goes to shit and she has to accustom herself to life underground, that is until an accident forces her out into the real world.Caine has no idea why he saved Nadine.She is everything he hates- rich, spoiled and entitled- and yet, he couldn't just let her die.Living outside is hard enough without having to save someone else and yet, he does it with Nadine.Thrust into a world that she has no idea how to navigate, Nadine is forced to rely on Caine.Her life is literally in his hands.They soon realize that maybe the monsters are the least of their worries.

Usami is a beautiful classmate with good morals and top grades. At school, she views Sakuto as her rival. But when he bumps into her after school, he sees a different side of her. She was playing at an arcade after classes, and she had this innocent smile that one couldn’t imagine on her at school.For the sake of getting along with her, he gets close to her at school and then plays together with her after school. They each have their places where they can deepen their bonds, and at last…This is the start of a heart-warming love triangle romcom!

This is a cliché story about two young people saving the world.

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!