Hi! School: Love On is a 2014 South Korean television series starring Kim Sae-ron, Nam Woo-hyun and Lee Sung-yeol of the band Infinite. It aired on KBS2 from July 11 to December 19, 2014 on Fridays at 20:55 for 20 episodes. Hi! School: Love On is a teen fantasy romance series about an angel who has no choice but to become a human after unintentionally saving a male student in danger. The now-mortal angel then interacts with teenage high school students and learns about love, friendship, and what it means to be human.