Is There a Contract? I Have an Ark That Can Travel All over the World

Ye Chen, of course, you can also call me Dr. Chen. I used to be just an ordinary time traveler, The future is a pure-blooded devil who understands a little bit. There is no way, in order to live a comfortable life lying down, He had no choice but to embark on the path of contracting as an operator from another world. All this should start from activating the system one day... Many years later: "So this is the reason for your ruthlessness?" "This is really slander! It was obviously you who took the initiative." "Then you don't know how to say no?" "... How about you take a closer look at this contract written in black and white?" "What?" "It's written here, but don't rely on me!" —— Front row tip: I know how to dismantle CP! Daily love growth, harem collection and development, adventure battle upgrades