The Core's Last Man

Kade, a surface mechanic, falls into an underground world inhabited entirely by women. Its life source, the Core Water, is corrupted by a dark meteorite. As the only male, Kade discovers his blood can neutralize the decay. Partnering with Queen Lyra, General Vex, scientist Elara, and medic Lina, he risks his life to purify the source. He transforms into the revered Guardian of the Core World, choosing to stay.