Yomi Kaska: Vesperbell's Reverse Requiem

Yomi and Kaska were the two-member song unit 'Vesperbell.' They sang together, laughed together, and chased the same dream. But one malicious incident shattered everything—Yomi lost her voice, and Kaska lost an eye. They drifted apart, stopped contacting each other, and their dream quietly died. Three years later, Yomi lives alone, unable to sing. One night, a mysterious girl named Mina appears before her and offers a deal: 'I'll send you back to just before that day. But if you change the past