Monster Invasion at the Beginning, I Was Chased by Tentacle Monsters

Monsters invaded the campus. They will kill every human on campus. If you want to survive, you must find out the monster's killing pattern. Either kill the monster. Or get killed by monsters. Or, you can also merge with the monster and become its host. … This is a world where monsters are slowly coming back to life. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.