Luke is a boy in Kim's first class who's known for bullying and fighting, something he's especially good at given that he's been held back several years and is much bigger than his classmates. He challenges Kim to a fight several months after she begins school, an invitation she interprets at face value, and kicks him hard during their fight. Later, she discovers that Luke was actually courting her when she watches Luke's "fights" with another girl devolve into kissing. He stops bullying her after she kicks him.
Luke Character Timeline in Girl in Translation
The timeline below shows where the character Luke appears in Girl in Translation. The colored dots and icons indicate which themes are associated with that appearance.