The three people who grew up together had agreed to take the entrance exams for the university where their elder brother and sister were studying together. However, when Lu Zhi and Zhang Hao came to Gao Ling with their admission notices, they saw that he wanted to go abroad secretly.
Gao Ling: "Xiao Zhi, I'm sorry that I can't study with you in college. My mother is sick and my brother and I are going abroad to take care of her. We will be back soon, really." Gao Ling panicked. He decided to go abroad quietly because he didn't want to see Lu Zhi looking at him with disappointed and sad eyes like this. Lu Zhi broke away from the hand held by Gao Ling and turned around with the admission notice he was going to show him. Gao Ling He wanted to pull Lu Zhi back but was pushed away by Lu Xu who had been following his brother to record the matter and asked him why he didn't tell them earlier. Gao Ling wanted to explain but was interrupted by Lu Zhi: "Don't you want to leave quietly? Okay, you can go and pretend that we have never been here. Goodbye, Gao Ling." After that, he took his sister and left without looking back, no matter how Gao Ling shouted behind him...
Just like this, what will happen to their story after Gao Ling returns to China two years later?
Intention: An agreed promise