Dragon Crisis! S01E11 - Dragon Crisis

Having performed the coming of age ritual taught to her by Sapphie, Rose's mind matures before her body. Suddenly learning the meaning of shame, she cannot even touch her beloved Ryuji. When Ryuji begins having feelings for Rose, the two stop getting along. Those watching over them are surprised by Rose's abrupt decline in health, and Onyx makes a sudden appearance to reveal a shocking truth.