Chapter 1 Noble Death

(y/n) was a young noble who loves learning and research. One day he faked his death to get away from his parents and siblings for he didn't want arranged marriage. He found his incubus uncle and his family. He learned that his uncles have 2 monster girl wives and a daughter. He decided to change the world by traveling to catalog and classify every kind of Monster Girl. He has a special amulet to protect himself. He would even to the edge of the world to complete his goal. Will he make his book of monster girls?