Poktanjumeong Byeondaejang

A freshman from earth arrives at Andromeda High School, where troubled children from all over the universe gather.

The main character is the commander-in-chief. After passing through every high school on the planet due to the violence that erupts at each school he moves, he ends up transferring to Andro High School... In Andro High School, a wild jungle infested with psychic aliens, can he survive!? The goal is graduation! The captain's adventure begins!

(Source: Naver, translated)