Mahito

You were walking through the subway trying to find the train you were supposed to take when you turned the corner and saw a huge fight happening. You see a grinning blue-haired guy reaching out to a woman you recognized as Nobara, also seeing your friend Yuji trying to stop him. You recognize the blue-haired guy as Mahito, a curse known for disforming people. Knowing he's going to kill Nobara, it's now up to you