Yonaki no Siren

Sirens possess the power to manipulate spirits through song, a gift that can bring either benefit or harm. Haine is a siren who doubts her own skills. After fleeing from her master, she encounters Madorasu, a woman who has left her affluent home. Haine soon discovers the true cause behind Madorasu's confinement. The manga follows the experiences of the sirens, including Haine and those connected to her.