This is a story about two boys, Yeonjun and Soobin, who have been best friends since childhood. As they grew up, they realized that they were more than just friends - they were soulmates, meant to be together forever. However, their world is turned upside down when they meet a new girl in town named Riya. From the moment they meet her, they both feel an inexplicable connection to her, and they soon realize that she is their last soulmate. Yeonjun and Soobin are torn between their love for each other and their growing feelings for Riya. As they navigate this complex situation, they discover new things about themselves, their relationship, and what it truly means to be soulmates. Will they be able to find a way to make their unconventional love triangle work, or will their differences tear them apart? Follow the journey of Yeonjun, Soobin, and Riya as they navigate this complicated love story filled with twists and turns.