Dalgwa Emerald

Kim Jun-Kyung, who entered a prestigious high school with great difficulty despite her poor family circumstances, starts working part-time at a cleaning company to continue attending school without asking for help from others, and meets a man named Isak at the first house he cleans. A big house and luxurious items… Kim Jun-Kyung feels deeply drawn to Isak, who lives the wealthy life he had dreamed of, but is lonely and isolated like himself, and Isak also begins to hover around Kim Jun-Kyung…

(Source: Lezhin, translated)