"what is it! Can you give me a hint? " Although Tang Yu was relieved because of the reminder from his friend, he couldn't help but say that he had a headache when he thought that he was still selling on purpose.

"something related to blood vessels!" After hesitating for a while, he decided to tell Tang Yu the actual situation.

"it's something related to blood." Tang Yu's face immediately showed a very surprised look, and then some ecstatic said: "if it is something related to blood, it will help me a lot!"

"of course! If it wasn't for a very big relationship, how could I have reminded you to...