Nothings stronger than the bond--or the rivalry--between brothers!Mild-mannered Mob has never realized that his younger brother Ritsu, who enjoys all the social success that Mob lacks, nurtures a hidden, desperate envy for the thing Mob possesses that he doesnt--Mobs psychic superpowers. But when Ritsus own powers awaken at long last, the story turns towards a shocking new direction!From the creator of One-Punch Man!