Damn It! the Steely Straight Man Signed up to Become a Peerless Empress?

Protagonist: Meng Liang, a straight man who traveled through time and transformed into a tomb-guarding maid who looked like a pretty girl. Golden Finger: [Ancient Tomb Sign-in System], sign-in locations: Valkyrie Mausoleum, Tomb of Weapons, Hall of Valor, Altar, etc. Rewards: "God-level Cleansing Technique" (purify the dead air, resentment, and clear time stamps), "Weapon Mastery" (awaken the spirit of ancient divine weapons), "Summoning of Heroic Spirits" (summon the heroic spirits of ancient battlefields to assist in the battle). World view: A deserted ancient battlefield, buried with the ancient tomb of the Valkyrie, hides ancient secrets and the forces of the world of immortality.