Hello Monster (Hangul: 너를 기억해; RR: Neoreul Gieokhae; lit. I Remember You) is a 2015 South Korean television series starring Seo In-guk and Jang Na-ra. It aired on KBS2 from June 22 to August 11, 2015 on Mondays and Tuesdays at 21:55 for 16 episodes.Its early working title was Hello Monster transliterated in Korean (Hangul: 헬로 몬스터), which was retained as the international English title.