VOLUME THREE OF SINNER. The eventful Sinara Academy competition has been completed and the top three winners have been determined. All the participants have parted ways in groups or alone, but the connections they made with one another will keep them tied together. As Katana takes Marubee, Kara, and Aviva to Ronen, how will they fare under her training and learn from her motive for guiding them? At the same time, Kaesar is confronted with a conflict that brings his past and present into one, and his desire to know everything about his life is beginning to realize. With his memories coming back to him, what course of action will he take and who will be affected?