I'm just an internet cafe owner

Next to the Witch Cult, Natsuki Subaru defeated the invading Witch Cult with his invincible roll and 'Hunter Giant'.
At the front lines of the monster battle, Fujimaru Ritsuka raised her staff high, and a meteorite falling from the sky defeated the invading monster.
Amidst the black bullets, Tina, wielding Ada Wong's heart-shaped rocket launcher, blasts Gastrea one by one.
Inside an internet cafe, people got into a fight over the oil field.
On campus, some are fighting for the Alliance, some for the Horde, and some for Demacia.
On the battlefield of Terra, the 'Celestial Movement' changed the course of the war.
In the depths of Teyvat, 'Surging Elegy' shattered the shield of the Abyssal Apostles.
Although I've left the game, I'll never regret saving that girl.
But before that…
"Network administrator, add another hour."
"I've said it so many times, I'm the owner of this internet cafe, not the manager."
P.S.: The author has a diverse background and plays all sorts of games. Feel free to use game and anime references in this book, but please don't start any arguments!