Yuuya Tenjou has been bullied all his life. Then he discovers a door to another world. Powerful weapons. Vicious monsters. It all seems like a fantasy game! And when he returns to his world, he realizes that his leveling up comes with him.
He used to travel to 
places around the world...
...كان يسافر إلى أماكن من حول العالم
Opa ist ja viel
in der Welt herumgereist
el abuelo viajaba por todo el mundo
el abuelo viajaba por todo el mundo
papy me rapportait toujours
des cadeaux bizarres
वह दुनिया भर की जगहों की 
यात्रा किया करते थे...
visitava un sacco di posti in giro per il mondo
Ele costumava viajar para diferentes
lugares ao redor do mundo...
вечно разъезжал по всему миру…