An ancient immortal master came to teach in modern times just to capture his apprentice.
The seemingly cold and ascetic master huddled in his apprentice's arms and cried: "How come you turned around and forgot all the good things I did to you? I want you to remember them all!"
A disciple with peerless immortal bones, a master who seems cold and ascetic but narcissistic and soft, have met after thousands of years.
Purpose: Master is a profession with full marks for danger.