BEST FRIENDS?? -CHENG XIAO (WJSN) & WOOYOUNG (ATEEZ)-

Xiao (Cheng xiao) and Woo (Wooyoung) had been best friends ever since they are kids. Their father used to be housemates when they studied in the university and they both got married and had a child and the child now are best friend! They went to the same school ever since they were child until now; they're entering high school. Somehow their friendship went downhill when high school start. Xiao went into Science and Technology stream class whilst Woo in the Liberal Arts stream. How did their friendship end? Will they be awkward when their family had a gathering? How did they solve the problem?