Tadashi turns briefly to watch the boy run away. In another situation he might try following after to be sure the kid found himself a safe place to be, but he hadn't exactly prepared himself for... this, and considering the look on Callaghan's face? Neither had he.

With Akito quickly moving out of sight, Tadashi lets that wary posture drop and moves forward, open relief spreading over his face.

"Professor! You're here! Are you okay? How long have you been here?"