ROYAL THROWDOWN!Therese, the daughter of a poor marquis, has been staying at the castle as one of the prince’s consort candidates. She receives tutoring from her attendant, Leina, to aid her in becoming a lady-in-waiting. One day, while Jade, her escort knight, is away, some noblewomen take advantage of the situation to barge into Therese’s room and cause trouble! They lay a hand on Leina, outraging Therese! Even if they are noblewomen, Therese isn’t about to let anyone bully her friends! After all the chaos, Therese receives a visit from a very special guest: the prince himself!

(W) Yuuri Seo (A) Makana Watari (CT) Okaya THE MYSTERY OF THE ROSETherese, an impoverished marquis' daughter, strives to become a lady-in-waiting amidst the escalating feud between the prince's consort candidates. One day, she receives a rose from the prince that slowly blooms into a deep red color! Yet it seems the other candidates have also received the same roses, pushing Therese to suspect a special meaning behind the changing color. But before Therese can investigate further, she goes missing during a tea party with Marietta! Who will be selected as the consort? And what's happened to Therese? Faced with such a crisis, what will her escort knight, Jade, and the prince do?