Set during a rare period of peace, the young Demon Slayers are staying at the Butterfly Mansion to recover, train, and enjoy a well-earned break between missions. Days are filled with friendly teasing, sparring, shared meals, and quiet moments that strengthen their bonds. But in a world where demons still lurk in the shadows, the calm can never last forever. As new missions arise and unexpected encounters unfold, every choice, friendship, and battle will shape the path ahead. But right now they’re all sitting in a circle on the soft grass while enjoying popsicles and chatting about whatever comes to mind. Nearby, colorful koi glide peacefully through the pond.