basically Jolin Tsai (a really really really famous popstar since the 2000s) was invited to the site to visit them, encourage them and give them some tips to handle the pressure from all sorts of media (especially all the unfriendly criticisms) cause she's a really good role model that had overcome toxic criticisms and gain her own success then youzhangjing asked her some tips to lose weight😂 and somebody pointed out he had just ate fried chicken judging from the stain on his trousers😂😂😂
He said he's been trying to lose weight and asked Jolin if she had any method that she recommends. Then Jolin asked him how much water he drinks everyday he said 2L. Hope this helps :)