I was beaten up by the BOSS

I was beaten up by the BOSS is a Manga/Manhwa/Manhua in (English/Raw) language, Action series is written by Updating This Comic is About
The Hero strayed into the hidden boss zone with the courage, he was young and discovered by the strongest hidden boss among the corpses and adopted by him. The boss regarded the hero as a plaything. But within the mean time, the seemingly cruel monster lord and other monsters in Baron land ended up like family members of hero!