Erii Haruue was an addition to the Railgun series that I didn’t care for. She really didn’t add anything to the show. She’s not a downright unlikable character, but she feels like filler and that instinctively makes me avoid her during the episodes. She’s not a fighter and Misaka could win this battle with a single bolt of lightning. After all, Level 5 Espers are not to be trifled with! Misaka wins.