I, who traveled to Chunwu, entered Stalingrad again?

Too long to read the version: This is an infinite flow novel in which a traveler is forced to be involved in other worlds. (The first world is a fan of the German anti-war film "Our Fathers")
Original version: As a time traveler, Yoshiki Zaikiza was thrown into the cruelest battlefield in human history after enjoying the warm daily life for only a few days, but when he finally crawled out of hell, unexpectedly He found that daily life has left him inadvertently.
This book is an infinite flow, not an invincible flow.World Line: Chunwu (Main World) - World War II Eastern Front (Completed) - Main World 2 - Warcraft