Kakeru Shiki serves as a main protagonist in the series. This young boy launches an adventurous quest to locate the legendary Blue Blink, a magical bird whose powers he intends to harness for rescuing his family from financial hardship. Despite reluctantly moving to the countryside with his parents and preferring city life, his determination to aid his family overpowers his initial resentment of rural surroundings. He displays notable bravery and a readiness to embrace risks, persisting relentlessly against formidable obstacles. His sharp intelligence shines through rapid problem-solving under duress.

Kakeru's journey unfolds alongside his pet parrot Korosuke, who provides loyal companionship and comic relief. Korosuke aids Kakeru through resourceful assistance, their strong bond enabling them to jointly outmaneuver adversaries and conquer challenges. As an inspirational figure, Kakeru embodies perseverance and courage. His evolving adaptability through continuous trials underscores his personal growth and unwavering dedication to both his mission and family.