Fantasy

“What’s my class?”
    [Beast Tamer – Class E]
    “..Seriously?”
    Lee Min-Jae was a workaholic with no social life who died slumped over his keyboard. When he opened his eyes, he was in an RPG-like world — but with the worst class imaginable: Tamer.
    Tamers were seen as useless. Weak. Limited to disloyal, expensive-to-keep wild monsters.
    But he wasn’t just any fool. He was a systems-obsessed gamer, an expert at finding exploits and shortcuts.
    With his cold, analytical mind, he chose to break the game’s rules — by leveraging the most reviled mechanic of all: contracts.
    Where others saw abomination, he saw an exploit. And he was ready to turn the worst class into something unbeatable.
    ---------------
    This story have:
    [Adventure]
    [Smut]
    [MSmut] (no NTR).
    [Harem]
    [System / LitRPG]
    [Strategy] - cold planning, exploiting mechanics, creative use of abilities.
    [Cold and Calculating Protagonist] – no naive romance.
    [Worldbuildin] – rules, politics, economy.
    [No NTR] – the protagonist is not betrayed, no passive humiliation content.