The world’s largest virtual reality game ‘Kailran’. A new class becomes open with the large scale update. Jin Sung, who was top ranked in Kailran, to obtain the Hidden Class, aggressively resets his character. Jin Sung’s unstoppable momentum even when his surroundings try to stop him! There was only one reason why he played the game. “It looks bloody fun… Another reason, do I need one? To become Kailran’s top Summoner, game researcher Jin Sung’s adventure starts.