Natsuo Komori  

, コモリ・ナツオ

One of Takuto's close friends is suffering from an illness and has been given one year left to live. Despite this grim prognosis, Natsuo decides to make the most out of his remaining time by living life to the fullest and in a carefree manner. This bold approach motivates Takuto to embark on a journey to Southern Cross Island where he confronts his father who abandoned him.