Read ch 468, Little Daniel is fighting Big Daniel. Big Daniel is in the unconscious state that's why they're basically both awake at the same time. Little Daniel goes to unconscious state as well during the fight, it's super cool. Little Daniel has grown a lot so he looks like shorter version of big Daniel now.
He is. They went to get big Daniels body back, little Daniel trained fighting with Gun and he grew a lot too. He found out who his dad is and so much more. He's lost his consciousness during his fight with big Daniel and he switched to big Daniels body after a long while. Big Daniel was kidnapped for aaages so he had to stay in the little Daniels body, but now he has both bodies again.
Lol I just prefer bangs and I don’t usually like characters with really short hair lol XD
But it’s cool that his og body is becoming like his newer body. I remember theorizing about that near the beginning of the series so it’s fun that it’s kinda happening(though this story seems to have completely changed from the original story about highschool lol XD)

Ayo I haven’t looked at this manhwa in forever. Wtf did they do to his hair, I’m gonna cry. Was that necessary ;;