I'm 90 years old and the system tells me it's time to create harem - Chapter 24: After tonight, you will definitely fall in love with me.[R18]

On that day, due to the outbreak of an unprecedented and abnormal event, 41 students from class 2-7 of Shiromine Academy are summoned to a different world, one full of magic.

Separated and summoned inside a vast dungeon, where the only way to escape is to head to the deepest area, they are given the power of a Divine Protection 『Vocation』 as the only means of survival.

While some of them are brave, some just do whatever they want, and some harbor treacherous intentions, they all aim to capture the dungeon.

In this place, one person gained a 『Vocation』 whose skills are unsuitable for combat, attendance number 19, Momokawa Kotaro.

A boy with a small and lean build from the Literature Club wasn’t blessed with a physical ability, swordsmanship, or strong magic, rather he only had the 『Shaman』 vocation to rely on.

After being driven out of the group and left behind by his powerful classmates —– his survival instinct starts running at full throttle!

Pushed to the limit of survival in the different world’s dungeon, what starts with trusting and loving each other soon ends in killing and betrayal.

The most beautiful and gruesome battle royale has raised its curtain.

The NPC sets out on a journey to defeat the Demon Lord, joined by beautiful girls he meets along the way.---This is an NSFW story, so if you're under 18, turn back now, son. No NTR, and no full-on Yuri. There might be slight Yuri—like girls kissing and stuff during threesomes—but it's not that kind of Yuri where the girls fall in love with each other while in a relationship with the MC.---

After waking up, Bei Chen bit the bullet and became the leader of a certain group. On the first day of taking over the organization, the old housekeeper introduced Bei Chen to the three core cadres of the organization.

“Master, this is Coulson, and the two next to him are Natasha and Mei. They are the backbone of the organization.”

Beichen: “…”

All undercover? Going in through time travel?

Fortunately, the system was awakened at a critical time. As long as it is summoned and contained, it can get rich system rewards.

Ding~ Congratulations to the host for successfully taking in the Crimson King and gaining the power of supreme divinity! The Scarlet King in full force.

Ding ~ Congratulations to the host for successfully containing the son of evolution, and gaining the power of fusion evolution and transformation!

finally! Beichen, who possesses thousands of abilities, has become the most indescribable existence in the multiverse!

- Description from novelbuddy