He reached the library. The lights were dim inside. He spotted the metal return box near the side entrance. It was empty, save for a thick, blue book.

: It employs an inductive approach to grammar, using "Flipped Classroom" videos where author David Spencer explains concepts, allowing more class time for communication.

The rain in Seoul was relentless, a grey curtain that blurred the neon lights of the city into smudges of pink and blue. Inside "The Golden Bean" coffee shop, Minho stared at his laptop screen, his stomach tied in knots.

There was a long pause. The rain drummed harder against the café window. Minho checked his watch. It was 9:00 PM. The shop was closing.