My Righteous Senior Brother, I Confess My Love to the Devil's Saint at the Beginning

Chen Xuan traveled through a hundred years, became the chief senior brother of the Lingjian Sect, and opened the system As a result, the first mission actually asked him to pursue the devil's saint? As long as he pursues success, he can ascend to the upper world, slay his inner demons, and erase all regrets. The only thing Chen Xuan needs to do is to pursue the witch and let her sincerely say "I love you." Chen Xuan expressed a small problem But... Why did she reject my confession? Why is it not okay to give gifts? I've helped her unify the demon world, and she still doesn't agree? Hiss, are system tasks so difficult?