Jirachi is the quirky and brilliant astronomer of the Expedition Society, known for his erratic sleep habits and boundless enthusiasm for space and science. Though often drowsy or distracted, he’s a mechanical genius who plays a key role in understanding cosmic threats. Jirachi is cheerful, eccentric, and deeply loyal to his team, providing essential support in the battle against Dark Matter. His mix of whimsy and wisdom makes him both endearing and invaluable. He was born in Star Cave.