Japanese reggaeton singer "S.I."'s new single "Tatakai no Uta" will be released on January 13, 2025! Each person must be facing various "battles" in his/her casual daily life. This song is sung by S.I., who fights as an artist, and therefore, the lyrics express the strength to never give up, never stop walking, and never stop believing, despite the high hurdles, distant dreams, loneliness, and setbacks that overcome them. Starting with the lyric, "You are the hero of this story," the song is a straightforward cheerleader's song for all people, young and old, male and female, and for S.I. himself. Since it is released on Coming-of-Age Day, it will be a song that will push the backs of newcomers to adulthood.