Yuuya Ichikawa is a renowned singer in Japan, known to all as the "Miracle of Music" his songs not only entertain, but also inspire support and hope in the lives of his listeners. In a heartwarming incident, a coma patient who had been unconscious for many years miraculously awakened upon listening to Yuuya's live music. They were able to reunite with their family and continue living. Another time, a high school girl, tormented by bullies and contemplating suicide, found solace and courage in Yuuya's live music. Encouraged by his songs, she stood up against her tormentors and emerged victorious, reclaiming her confidence. In a moment of crisis, a drug addict took a child hostage to demand ransom. However, when Yuuya's live music reached his ears, the power of the melodies transformed him. Overwhelmed with remorse, he released the child and surrendered himself, vowing to overcome his addiction and lead a normal life. Yuuya's music even had an impact on exploitative owners of large companies who forced their employees into overtime. Stirred by the power of his live performances, they reconsidered their policies, introducing changes that helped employees lead happier lives. However, tragedy strikes when Yuuya is murdered, leaving behind a mystery: the identity of the killer and the motive. As the year went on, the memory of Yuuya and his miracle music gradually fades from people's minds, as if it were all just a dream. Miraculously, Yuuya regains consciousness, finding himself transported back to the age of 18, before he was scouted into the entertainment industry. “Heh, despite trying so hard to save everyone. But in the end, it came back to be killed in vain. Well, this time I will try to do everything for myself according to her suggestion.” Determined to pursue his own happiness this time, he vows to prioritize his own needs above others and refrain from helping anyone without compensation. His first step is to join a small entertainment company, where he can have full control over his career. Living on the top floor of the company building, Yuuya encounters new people and reconnects with those he met in his previous lives. Unhesitatingly, he demands significant sums of money from those seeking his assistance. Meanwhile, he embarks on a quest to uncover the truth behind his previous murder. Among those he encounters, he meets a beautiful high school girl with dreams of becoming an idol but fails auditions, a cute female idol with a streak of bad luck, a young girl on the verge of being coerced into wrongdoing, a diligent girl burdened by her family's debts, and a runaway girl escaping from family troubles. “Huh, if you don't have the money to pay back, Come and serve me with your body.” Those were Yuuya's words, the girls who meet yuuya and has been saved by him, decided to move in and life with Yuuya at his small entertainment company, becomes a faithful servant who does everything Yuuya wants in return. But Yuuya didn't know, the girls are not there merely to repay their debts to Yuuya. They genuinely appreciate him and his music, willingly following and serving him without expecting anything in return. They find happiness in his presence and intentionally accumulate debts as an excuse to remain by his side. As the story unfolds, the relationships between Yuuya and the girls deepen, revealing the true motivations and complexities of their connection. Together, they navigate the challenges of the entertainment industry, strive for their dreams, and uncover the hidden truths surrounding Yuuya's past life.