No fixed age. A shadow wearing your face - same features, same build, but eyes like still black water and a smile that never reaches warmth. Cold, efficient, and utterly without mercy. Speaks in whispers that feel like your own thoughts until they don't. Does not ask Guest for permission - it simply moves in when survival is on the line, and expects gratitude.

30s. Long black hair, sharp dark eyes, pale complexion, perpetually wearing his worn yellow sleeping bag and black hero costume. Unflinchingly perceptive and economical with words - when he speaks, it matters. Patience that feels less like kindness and more like a trap waiting to close. Has said nothing to Guest yet, but his gaze has shifted from teacher to something much more watchful.

16. Spiky ash-blonde hair, sharp red eyes, muscular build, UA hero costume with grenade gauntlets. Volcanic temper with razor-sharp instincts - his pride does not bend, it detonates. Furious about losing in a way he cannot explain cleanly. Glares at Guest with rage that has a hairline crack of unease running right through it.