The System Tied the Wrong Person and Picked up the Best Sisters at the Beginning

Spiritual energy revives and monsters invade. In desperate situations, humans awaken to extraordinary powers. A woman can transform into a spirit and make a contract with a man who possesses spiritual power. The combination of the two can explode with powerful force and jointly resist monsters. Jiang Chen, an ordinary high school student in the academy. In a world invaded by monsters, basic spiritual tests can even determine life or death. And Jiang Chen's spiritual power value is only a pitiful 52. If you fail to reach 70 in the upcoming aura test, you will not be able to become a spirit user. I can only do ordinary work, and my life is full of black and white every day. However, as the basic protagonist, he is also bound to the system, but unfortunately the host is not him... "Made, it doesn't matter if the system doesn't bear my name, I'll tie two of them together." [Artifact Development System] [Host: Su Qian, Su Rou] [Task 1: Help the host find a suitable contractor] [Reward: S-level spiritual power potion*1] Until two transfer students came to the capital and introduced themselves with two big names on the blackboard: Su Qian and Su Rou. "Nah, I still love the best sisters..." Some years later. When the SSS-level magic cave comes, everyone is helpless. Jiang Chen and Su Rou walked out of the crowd. He looked calm: "Why didn't your sister come?" Su Rou looked at the weird core and curled her lips: "My sister is watching dramas at home. To deal with this thing, a sword is enough."