Ep. 19: Investigation deepens as Ariana suspects Mattea after Hazel's death and Zenigata's release.

After Hazel's death, Cotornica closes its borders and detains Zenigata. Yata and Ariana review evidence, noting that Ariana's tutor Tomoe also taught Hazel. Selim is questioned for blackmail attempts but cleared of murder. The duo raids a photographer tailing Hazel, using his images to secure Zenigata's release. That night, Yata and Ariana share a tender moment before Ariana spots a familiar figure leaving Hazel's apartment in the photos. The next morning, Ariana meets Mattea, confirming her suspicion that Mattea is involved in Hazel's death. Ariana attempts to arrest Mattea, who stabs her and escapes. Zenigata and Yata arrive to find Ariana collapsed, holding a recording of the conversation that she insists must be sent to Lupin.

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