Overview: KIU does not want SAI to look down upon her and purposely gets SANDY to practice the dancing steps with her. Unexpectedly, KIU has carelessly caused an outbreak of her former sickness. SAI learns from KIU that her chiropractor, DR TONG is someone he knew. DR TONG advises KIU to do more exercises as to protect her waist and also asks KIU to change her old computer monitor… SAI gets DR TONG to do a lumbar inspection for him and asks about the situation of KIU. DR TONG asks SAI why he cares about KIU so much and SAI honestly admits that he has something to do with the separation between KIU and MAN… SAI requires KIU to do the stretching exercises during the class and makes KIU think that he is aimed at her intentionally……