S1·E24 Connected Hearts

Reiga orders Luze, Luka's younger twin brother, to destroy everything that stands in their way, so Luze challenges Luka. During the fight of Luze and Luka, Takashiro breaks through Reiga's barrier and takes on Reiga, using the darkness within him (the Duras in his body) to put him on equal standing with Reiga. Yuki decides to summon his power to end the cycle and his power goes out of control. Reiga orders Luze to leave because when God's Light is unleashed, it dispels all darkness and can endanger a Duras' existence. Luze, Cadenza and Elegy flee God's Light while Hyde is destroyed and the Zweilts' injuries are healed. Yuki is unable to stop his power but Luka manages to save him. Luka, Takashiro and the Zweilts return to the Kamakura residence with Yuki. Takashiro says the prophetic ritual revealed no emergency, so it's assumed that there's no immediate threat from Reiga in the near future. Takashiro releases the Zweilts to live as they wish until the next battle.