Tensei Akujo no Kuro Rekishi EP4 - No Matter Who Dies, I'll Be the Suspect Anyway.

Yomi mistakenly believes that Sol is oppressing Iana. Out of pure feelings and loyalty for Iana, he tries to kill Sol. Konoha is attacked by a man-eating flower created by Yomi's magic. After defeating it with Ginoford, Sol begins to suspect that suspicious events happening around him are also targeting him, and turns his eyes to Iana. Yomi declares, "I did it," and challenges Sol to a duel!