In South Korea, the Nth Room case, a large-scale, mobile-messenger-application-based sexual exploitation case, prompted comprehensive reforms to penal laws addressing technology-facilitated gender-based violence (TFGBV). However, despite the amendments, public sentiment and expert opinions suggest that the government has fallen short in adequately punishing TFGBV offenders. The pervasive issue of TFGBV in South Korea is rooted in the problem of gender-based violence in its society. This chapter explores how the invisible and visible signs of gender-based violence in South Korea contribute to the problem of TFGBV. Additionally, by introducing criticisms of the penal laws on TFGBV in South Korea, this chapter evaluates the role of criminal law in combating TFGBV, including its limitations and challenges. Through the analysis, this chapter aims to identify effective ways of utilizing criminal law as a means to combat TFGBV.