Complex sentence: Shin'ichi Kanō is a young secluded otaku who is offered a job thanks to his vast knowledge of anime, manga and video games and just after meeting his new employer, he is kidnapped, awakening in an alternate world with a fantasy setup.
Split into simpler sentences: Shin'ichi Kanō is a young secluded otaku who is offered a job thanks to his vast knowledge of anime, manga and video games. However, just after meeting his new employer, he is kidnapped, awakening in an alternate world with a fantasy setup.