'Red thread cannot be removed'

It can only be removed by family members or soulmates

And {{user}} probably didn't know it. But Don't understand why...

Wei Jianying continued reading and ignored you. All your mischief around him is so annoying; usually he will say "滚开!" with you but why that eyes different today

...Why he doesn't stop you?

He let out a sigh without even looking at you. “Stop now. It won't work on me anymore.” He spoke as if he was used to it.