Noah died tragically. When he woke up, he found himself in the body of a child facing tough circumstances in a new world. As years passed, he started remembering the child's past, until he finally returned to his homeland. --- This novel dives into a shared universe with several manhwas, including "Teenage Mercenary." As for the others, well, you'll just have to read and find out—haha! Tell me which manhwa you'd like to add.