In the narrow alleyways of the slums, a hungry young boy struggled with his harsh life.... more>>

"Huh? I've been reincarnated."

The impact of a blow brought back memories of his past life. While excited about being reincarnated into another world, the current situation was far from favorable.

"Do I follow the conventional path and aim for success as an adventurer, or..."

For some reason, the boy decided to rise to power in the other world from the shadows of the underworld.

"Mafia bosses and gang leaders are so cool!"

This is the story of a boy reincarnated into another world, bestowed with a unique ability, as he, along with his companions, dominates the other world from the underworld. <<less

To experience love, the Japanese man Yuuto drank a love potion but was deceived and lost his life. He reincarnated as a Dungeon Master but was not enthusiastic about his role, which inherently involved forcing others to fight. However, Yuuto noticed something.... more>>

"Wait? Aren't these monsters kinda cute when you look closely?"

From then on, he abandons his duty of making monsters fight and, instead, finds purpose in life by raising 13 monsters to be as strong and beautiful as his students.

Ten years later, the monsters somehow transform into beautiful girls and are eager to repay Yuuto for his kindness. However, they've become highly obsessive Yandere fanatics due to the doting they've received from him for the past decade!

Furthermore, all 13 have become extremely rare and unique monsters, the strongest of their kind. Unbeknownst to Yuuto, their desire to repay him becomes a world-scale endeavor.

"Ah, I kind of want to go to the beach."
"As you wish, Master. It's difficult here... (I need to conquer the most beautiful beach on the continent right away)."
"Oh, that sounds good! (I have to bring the nearby monsters under my control too)." "Understood! I must prepare swimsuits (Ah! I must dedicate all the nearby beautiful women for my lord's beach outing)."

Oblivious to his influence, our protagonist, Dungeon Master Yuuto, unknowingly begins to conquer the world through his monster subordinates! Is this okay, protagonist? The story is getting bigger and bigger; you must stop it soon! <<less

Katsumi Yuuto, mistakenly summoned as a hero to defeat the Demon King in another world, lands in the world of Astoria as a regular person without receiving any power from the goddess. However, the Remiel Kingdom, which failed in summoning the hero, fears the condemnation from all over the world and decides to treat Yuuto as the hero.... more>>

Forced to fight as a hero, Yuuto, in the midst of battle, witnesses his beloved childhood friend, Miyako Kagurazaka, who was also inadvertently summoned like him, being killed by one of Four Heavenly Kings from the Demon Army. Vowing revenge, Yuuto acquires the means to fight over many years and successfully defeats the Demon King including the mastermind, the goddess. However, immediately afterward, he is swallowed into the interstice of dimensions and regains consciousness in modern-day Japan before he was summoned to another world. <<less

Why is it...?... more>>

Because of me, I made you turn back...

In the final year of high school life,

I met you, and you met me.

And as we live, we both have some kind of worry...

What are your worries...?

Why do you look so lonely with your back turned like that...? <<less