Yaoi

After dying in a zombie apocalypse, betrayed by the teammates he trusted most, Ethan wakes up inside the body of the weakest Guide in the Empire.
    Mocked by everyone. Abandoned by his family. Publicly rejected by Lord Drey, his S-Class Sentinel fiancé.
    Perfect.
    This life, Ethan wants only one thing. A quiet life.
    Accidentally becoming the only person capable of guiding the Empire’s strongest Sentinel?
    …That wasn’t part of the plan.
    After a monster attack forces Ethan to guide the very man who rejected him, he does the impossible—completely purifying corruption that no other Guide can cleanse.
    Then Ethan discovers an even bigger problem.
    Once he Guides a Sentinel…
    No other Guide can ever Guide them again.
    And so, avoiding Sentinels becomes his number one priority. Too bad they keep chasing him.
    Now the Empire believes the weakest Guide is stealing its strongest Sentinels. The academy is watching him. Powerful factions want to claim him.
    And worst of all, the same man who wanted nothing to do with him suddenly can’t accept guidance from anyone else and refuses to let anyone else near Ethan.
    All Ethan wanted was to graduate peacefully.
    After all…
    How was he supposed to know that saving someone once meant they’d never let him go?