第 4 集: 悠真得知朝子死訊，並面臨與希斯·奧斯陸相關的任務

Asako's health is quickly deteriorating. Meanwhile, Yuuji is assigned to various missions by JB after he officially inherits Asako's old codename is CIRS, 9029. While on a guard duty mission in Colombia, Yuuji receives a call from JB informing him that Asako has collapsed causing him to rush home. Yuuji reveals that Asako suffers from a kind of venous thrombosis and that the original cause was a capillary rupture that happened after Asako took a shot from a high-caliber riffle. While such a condition would normally be survivable, Asako, despite her periodic treatment, regularly used booster drugs which made her body fragile. The doctors concluded that there was nothing they could do for her. Now on her death bed, Asako welcomes Yuuji home and he tries to will her into living and eventually breaks down in tears. Asako tells Yuuji to live for his own sake as he is now capable of accomplishing anything. Asako and Yuuji briefly reminisce about a brief moment in his past which he has forgotten. Asako then falls asleep and passes away peacefully. Grieving over the death of her best friend, JB recalls when they first met in an orphanage as children. She then invites Yuuji to live with her in her luxurious apartment which he does. Eventually, Yuuji decides to go on a soul searching trip which he and Asako originally planned on years ago albeit in a different location. After returning home, he visits the grave he made for Asako near their old home where decides to "do his youth over" and enroll in a "normal school" which resulted in his transfer to Mihama Academy and his current situation. As Yuuji finishes his life story narration, JB's assistant, Chiara Farrell, enters the room which prompts Yuuji to leave and return to the academy but as he leaves, his given a mission to assassinate someone called Ethan Glow but is then revealed to be Heath Oslo, the terrorist who took Yuuji in as a child after his mother died. This sudden realization causes Yuuji to lose his composure and fail his mission. He is then forcefully taken away by an unknown group. Back at Mihama Academy, the girls are shocked to see Yuuji on the news and his alleged participation in a terrorist attack conducted by Oslo. (Source: Wikipedia)

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