Koga and Eden! Young Cosmo, Slay the Darkness! Seinto Seiya: Omega : Season 1 Episode 46

Sending Kouga ahead Eden awakens his Seventh Sense and challenges Mars, immobilizing him with his Cosmo. Eventually, while Kouga struggles to retrieve Aria's staff at the top of the Sanctuary, Mars breaks free and grievously wounds Eden, temporarily defeating him. Pursuing Kouga, Mars easily shrug off any attack from the Pegasus Saint until Eden finally catches up to the two. Bringing their Cosmos to the limit, Kouga and Eden finally defeat Mars together and have Ludwig return to his senses. However, just as Ludwig is about to retrieve Aria's staff to prevent Earth's Cosmo from being drained, the time limit expires and the world's destruction begins, killing Ludwig.