Ghoul: Take Kamishiro Rise as a Prisoner at the Beginning

(Original world view, system flow, multiple female protagonists, dark ghoul protagonist) Young Ye Lan enters the ghoul world at the beginning. He is in a foreign country in a different world, and he is unfamiliar with the place, but he unexpectedly possesses a special ability given by the system: contract system. As long as she is a beautiful girl who can make a contract with him, she will become his captive unconditionally and do things for him. After being taken as a prisoner, he could also use the opponent's abilities. The more beautiful girls you collect, the stronger you will be. The stronger you are, the more points you will get, which can be exchanged for more contract cards and contracted with more beautiful girls. Hey, why not do such a good thing! ?