Focuses on Chapon, an enigmatic boy who descends from the heavens with no memory of his past. Living alongside Anpanman, he one day assists a stranger and discovers the delight in bringing joy to others, aspiring to become a hero like Anpanman. Yet when Baikinman appears and unveils Chapon's hidden origins, he must decide whether his background or his aspirations shape his identity within the boundless skies and hearts of strangers.