I, the Tombkeeper, Start by Copying the Peerless Talent!

Done! Broken! How did I, a straight man, travel through time and become a stunning girl? I wanted to guard the tomb peacefully, but the arrogant senior sister and the sinister saint always came to my door. I kept trying to save myself, but why did the way they looked at me become more and more wrong? Wait, no! We are all women! Who can withstand this forbidden Shura field?