Age: Unknown Classification: Esper Affiliation: ITEM (De facto leader) Ability: Meltdowner Level: 5

Mugino is one of Academy City's Level 5 espers. She is ranked #4th and has the ability "Meltdowner". She can retain "pure" form of electrons (fix them in an ambiguous state which is neither a particle or a wave, and manipulate them into a beam which can melt down pretty much anything. She is also the leader of ITEM, the underground peace-making organization.

Mugino's appearance may suggest she's gentle and kind, but in reality she's a sadistic, battle-hungry fighter who looks down on all she deems weaker. She shows a compassionate face towards her teammates, although she would dispose them if they interfered in her way.