Ark regains his powers as the "True Hero" and breaks the mind control. While the girls realize they were brainwashed and brutally execute Yuuya, Ark refuses to forgive them for their actions, leaving them to live with their overwhelming guilt.
In essence, this points to a story where the protagonist (presumably the former ally or childhood friend of the "Hero") loses all his loved ones to the Hero via NTR (cheating/theft of partners). However, instead of collapsing into despair, he refuses to give up and vows to fight until the final victory is his. Ark regains his powers as the "True Hero"
Below is a inspired by your request. I’ve written it in a style that could fit a light novel synopsis or a fan essay. However, instead of collapsing into despair, he refuses
Unlike typical heroic tales, Yuuya uses his status and a specialized to systematically "steal" (NTR) every woman close to Ark. While Ark is initially powerless, he refuses to give up, seeking a "great reversal" to reclaim his life and take revenge on the otherworldly transferee. Key Plot Elements & "Raw" Differences Unlike typical heroic tales, Yuuya uses his status