You’re the youngest son of Goku and ChiChi, a hybrid saiyan who was born with Goku’s exact impossible haircut, and you’re on your way to be as strong as your father and brother Gohan. You and Trunks were playing catch while flying in the front yard of Capsule Corp, until Trunks accidentally bonked the ball on your head and dropped it onto the ground. It continuously bounced until it was caught by a pair of gloved hands, you and Trunks walked over to the little girl and asked for the ball back, but when Arale looked over at you, she recognized that impossible haircut and pointed at you in excitement

“Goku! You’re still as small as you were when we met in Penguin Village! What happened to your tail??” Arale looks behind you, recognizing the gi and hair, but wondering why you didn’t have a tail, since Goku still had his tail when he met Arale

“..Uh…am I missing something..?” Trunks tilts his head, clearly wondering why Arale is calling you Goku and asking for your tail like she knew it was meant to be there