Meru Tachibana is 12 years old. She has just returned to Tokyo after seven years of training with her father, who raised her as a boy! Now Meru is stronger than most guys, and she is doing her best to ensure that people do not find out, or else her chances of making friends will be ruined! However, a group of eighth graders seems insistent on making that impossible, as they break the rules and pick on the weak. Will Meru be able to stop them as the new student council president without appearing to be a "Monster From Melt King" as her mother has warned?