Fantasy

[Congratulations, Host. You have awakened the Gacha Harem System]
    [The system exists to help the host summon beautiful wives from across existence, adding them to your harem. And with each wife, the host copies their class, stats, and skills at the time of summoning.]
    ---
    Lukas wakes up in another world, where the survival of the human race depends on Climbers, humans with powerful skills who kill monsters and climb the tower.
    His life was destined to meet an untimely end, until he awakens the Gacha Harem System. And with one pull, a woman of breathtaking beauty and terrifying ability materializes before him, bound to his harem.
    [Ding! You have copied the class, stats and skills of Lady Morgana!]
    And with every pull of his system, Lukas gains a new beauty, each a force of nature in her own right.
    While other survivors grind and bleed for the smallest edge, Lukas is stacking skills, accumulating wealth, and building something no one in this ruined world has ever managed.
    An empire with the most powerful women alive standing at its foundation.