Overpowered Protagonist Training Strong Male Lead Monster/s Invincible Protagonist Mother and Son Webtoon South Korea Level System Survival of the Fittest 21st Century Apocalypse Inhuman Power Time Skip Violence Parents Survival Transformation/s Guild/s Male Protagonist Strong-Willed Protagonist Super Powers Revenge Part-Time Job Skill/s Skill Growth Character Transformation/s Protagonist Bored with Life Supernatural Elements Dungeon/s Exploring Mass Murder/s Web Comic Full Color Massacre Dungeon/s Calm Protagonist World Domination Muscular Female/s System Livestreaming Monsters Invade Earth Weak to Strong Streamer/s Ranking System Dead Parent/s Indifferent Protagonist Game RPG Character/Role Character Death/s Game World Game of Death