17 years old high school student Kaname Sudo, receives an online invitation by a friend to play an app game called Darwin's Game. Launching the app Kaname is drawn into a game that involves a fight between life and death, including relentless murder and conquests, by players given an ability called Sigils. His Sigil, The Fire God's Hammer, allows him to recreate weapons and other simple objects he had touched before, and using his intelligence, rationality, and ability to react to any situations helps develop him into becoming a top ranked player in the Darwin's Game.
