Busō Renkin Odcinek 10: You and I have A Affinity

Both Kazuki and the Hayasaka twins cannot hide their shock at learning each other's identities as Alchemist Warrior and LXE. But the Hayasaka twins are determined to fight. Kazuki proposes to battle Shusui one on one until Ouka returns from shutting down the school security system. Shusui hands Kazuki the first strike, but he deflects it with his kakugane. Activating his own kakugane, Shusui produces his Buso Renkin, Sword Samurai X, which has the property of absorbing any energy that it comes into contact with.