C112 Merit Exchange

"As for the method of calculating contribution points, I will give it to you together with the items to exchange for contribution points." The old man continued, "There's also this." He then threw a red card towards Di Tian, "This is your door card, the house's number is written on the door card. You can go find it yourself."

"Alright." Di Tian put down the disc and took a look at the card