One day the No. 1 player ‘Kim Jihan’ who reached the apex rank using bugs of the game gets his character deleted by a mysterious user and becomes level 1. ‘I should not have used bugs to level up…’ While Jihan was regretting his past a new opportunity arrives… “I’ll make you a ranker again in a way that will knock out buggies like you.” This is the story of the strongest bug player who regressed into a Bug Hunter who catches bugs!