Hunter x Hunter — Episode 37: Ging x And x Gon!

You are watching the episode Ging x And x Gon! After learning Nen and becoming a true Hunter, Gon returns to Whale Island with Killua. When he arrives, Mito has a box for him. She was told by Ging to give this box to Gon once he became a Hunter. However, it appears that the box cannot be opened.