Reverse violate Castle ～A Succubus Trap～

One day, a letter arrived from the village chief. - "Dear Hero - I have a request for you, Hero, and have sent you this letter. - Right now, in our village, a succubus that sucks the vitality out of men is rampaging every night, and all the men in the village are dying one after another. - If this situation continues, our village will collapse. - In order to keep the village alive, I would like you to get rid of the rampaging succubi. - I would really appreciate it if you could help our village." - You, the hero, have received a request from the village chief and have entered the succubus castle to get rid of the succubi that are troubling the village. - Once inside the castle, the succubi will use all sorts of sexual techniques to try to drain the hero's energy with reverse, blowjobs, seductive seduction, etc...​