Finally I decided to go back Chengdu for one week in Chinese new year after talking to Jiang Yu and Ye Yi online.
I haven't seen them for three years but I strongly believe they're still fucking indecent and snobbish as we were in university and that's why I like them so much that we would do all kinds of shit things together :)
Nevertheless as soon as I made my mind, a few annoying things came out for me to settle before leaving...