The Bubble Love of the Mermaid, Vol. 1

Asana Amamizu, marked by a mysterious red scale on her wrist, has always been treated as an outcast in her own family. Despite her attempts to lead a normal life at Yotsuru Girls’ Academy, she keeps her distance from her charming new language arts teacher, Sakuya Shigure, believing he would never notice her. However, an unexpected marriage proposal challenges her assumptions and reveals that they might share a deeper connection than she ever anticipated.