真木（神尾楓珠）が、幼馴染のユキの死をきっかけに政治を志したことを知る、平（星野源）とサチ（山田杏奈）。ユキは、７年前に起きた鷲田（柄本明）への政治献金事件の犠牲者だった。鷲田は、真木が自分への復讐を考えているとの疑念を抱き、平に真木を切るように命じる。真木を裏切るのか、ウーアを守るのか…平は決断を迫られる。一方サチは、真木が部屋の地下室に、謎のＡＩ少女を作り出していることを平に打ち明ける…。
Kiyoshi and Sachi are now aware that Aran's political aspiration was triggered by the death of his childhood friend Yuki, a victim of a scandal seven years earlier involving her father concerning a disguised monetary contribution to Prime Minister Washida. Suspecting that Aran is scheming to take revenge on him, Washida orders Kiyoshi to remove Aran from his post, and this puts Kiyoshi in a dilemma whether to undermine Aran or to defend Utopi-AI. Meanwhile, Sachi reveals to Kiyoshi her discovery that Aran has created a mysterious AI girl character in a hidden room in his residence.
