On May 19, R1SE member Xia Zhiguang posted a photo with Han Mubo on the social platform, and attached an article: "When the burning is a teenager, long time not to see ah, Mu Bo brother ~" It is reported that in 2015, Xia Zhiguang, Han Mubo and Xiao Zhan, Gu Jiacheng and other 16 people participated in the "Burning Bar Teenager", this photo is also the same frame again after many years.