I've had some difficulty figuring it out as I do not read Korean. The words are:
"Kin에게 150%의 추가 대미지를 입힙니다"
Does this mean that Kin will be hit for 150% more damage?
Or does it mean that Kin will be hit for 150% more damage and I also get hit for 150% more damage whenever Kin hits me?