After mastering Nen and becoming a real Hunter, Gon returns to Whale Island with Killua.
Gon heads home to Whale Island along with Killua. Mito and her grandmother tell Gon about Ging's past. Gon receives a small box from his father. The 2 manages to open the small box and found 3 items and decided to listen to the cassette tape first that contain Ging's voice.