The sophomore installment of Maria-sama ga Miteru follows the start of spring at Lillian Girls' Academy. The students are thrilled to reunite with friends, yet the Yamayuri Council is grappling with mixed emotions. Yoko, Eriko, and Sei are preoccupied with leaving Lillian, while Sachiko, Rei, and Shimako strive to ensure their sisters have an unforgettable commencement ceremony. The White Roses will feel Sei's absence profoundly, and finding a replacement won't be simple. Is there anyone who could impress Shimako sufficiently and become the next Rosa Gigantea en bouton?