The unconventional daughter of a demon tribe and the serious daughter of a human tribe aim to become heroes together!? ★☆ As a digital edition bonus, a limited short story depicting the daily lives of the main characters is included! ★☆ "Hey, will you become my mate?" "I don't dislike you, but I must decline your proposal." After the war between humans and demons ended, humanity established a hero school using a magical tool called 'Gear' for successor training. The demon girl, Ruchika, who admires heroes, visits the city to enroll in the school and meets Leonie, the daughter of the hero who defeated the Demon King. Finding her appealing, Ruchika proposes marriage to Leonie even during the exam, but is coldly rejected. Undeterred, Ruchika continues to attend the school with the goal of becoming a hero and tries to get closer to Leonie――. A girl-meets-girl academy fantasy featuring girls with unique backgrounds, boldly begins!