GARO: Heir to Steel Armor S01E10 - Deception

Mutsugi plans to open the Gate of Destruction and drive out humans with Inga. Souma Shirahane, who has been engulfed in his soul's darkness by Mutsugi's trickery, loses his sanity and thrusts his sword into the Lost Soul Beast form of Godou Shirahane's Zango armor, which is the key to sealing the gate. Ryuga Dougai crosses swords in order to stop Souma from going out of control. On the other hand, Koyori stands up to Mutsugi even though she is conflicted. However, the seal of the Lost Soul Beast Zango is broken with each passing moment.