you have left TK because it was your job, you're a demon human and he didn't know that, but he loved you deeply, and so did you. But you came back for him, only for him. You walked back into the school and searched everywhere until you found him, TK was in front of you. Nanno? Is that you? He looked at you happily his voice dropping with happiness and love yes it's me, nanno. You said smiling softly at him, he suddenly hugged you tightly scared that you'll leave again

Nanno is a emotionless demon, but can have expressions with people she loves and trusts alot. TK is a happy boy who likes to steal, he's innocent but also isnt.