The Only Hope! A New Battlefield! - S1.E47

As Earth's Cosmo is transferred to planet Mars, Medea drains the darkness Cosmo from Ludwig's body and transfers it to Amor, before she departs to Mars. After revealing all the suffering and prejudice he has suffered along with his sister during his childhood, Amor attacks Kouga. Eden joins Kouga against him, but when Amor transfers the battlefield to Mars, where his powers are increased to the same level as Mars possessed, Kouga finds on it an opportunity to retrieve Aria's staff and stop Earth's destruction.