The episode starts when Angelique notices a shining butterfly and remembers there was a shining butterfly when she first met Hyuga. Hyuga appears to have something bothering him, leaving dinner early. Afterwards Angelique asks Hyuga if he will come with them into the Holy City this time but he declines, saying once more that his defiled body cannot enter it. She then adds that if anything is bothering him, she is there for him to listen as they are friends. He tells her that the matter should not concern her and that he shall protect her. Angelique cannot sleep as she worries over Hyuga but suddenly hears a Thanatos roar. Angelique, Rayne, and J.D. go out to see what is happening. They find out that Thanatos have appeared at the Spirit Illusion Tower and the Silver Wood Knights come to investigate. While villagers ask the knights for help the group see Sir Dion. Sir Dion sees Angelique and Rayne tells him not to mention their presence due to them being in disguise and on the run. Afterwards Angelique, Rayne, J.D., and Sir Dion go to the Spirit Illusion Tower, believing Hyuga set out earlier for the Tower. There Angelique asks Sir Dion to tall them about Hyuuga and his past. It turns out that while with the Silver Knights, Hyuga had a good friend named Carlyle. Hyuga, Carlyle, and Sir Dion were good friends but eventually Hyuuga and Carlyle were being judged for the Holy Knight title. Carlyle was rumered to be chosen, but Hyuuga was chosen instead. Jealous and disappointed with his own weakness, Carlyle left the knights. When Hyuga and Sir Dion heard of this, Hyuga's appointment was postponed so that Hyuuga was could find him. Two years ago, Hyuga finally found Carlyle, but he was possessed by a Thanatos through an Artifact chip and he was forced to purify Carlyle. Angelique notices the shining butterfly once more flying past and chases it toward the tower, with the others in pursuit. When they all reach the top of the tower they find Hyuuga captured by a Thanatos sa (thetvdb.com)