The Main Characters That Only I Know - Chapter 37:

Han Yang never thought he would one day sell himself into a marriage with another man. He believed his life would be mundane but that man, named HeLian Qing, broke his pre-planned life. Parental debt, a child’s compensation, he had no chance whatsoever to resist, he has no ability to resist.

Our straight (?) bottom woke up ten years into the future and found himself on the bed of his childhood friend… At the start, the bottom was shocked to his very bones, but he soon quickly accepted this premise and found the whole situation to be rather amusing. Precisely then, the bottom once again went back to his timeline — back to when he and the top were just platonic childhood friends.

In 'Only Wisdom Awakened,' the world bears the arrival of monstrous threats and the emergence of awakened individuals wielding extraordinary powers.Hans Richter, a young man burdened by the weight of debt he had to take to cover up his family's medical expenses, inherits the 'UNKNOWN' class {Knowledge Seeker} on the somber night of his eighteenth birthday.Unlike his peers, Hans's abilities stem from his relentless pursuit of knowledge, and his boundless imagination, unaffected by the limits set by the 'system' for others.As Hans navigates this perilous world, he grapples with moral dilemmas and confronts formidable adversaries, driven by his longing to once again see his loved ones and unveil the truth behind the catastrophic events that reshaped his world.

We do not belong to the light nor do we belong to the darkness, we walk the line in between.

There will be no people singing our praises or bards retelling our heroism but we will have pride in our work.

– Law of the Demon Hunter, Prologue

- Description from Novelupdates