The Octagon is a building that belongs to Cheongang.
Description[]
The Octagon is an octagonal shaped building with six floors. It is where the founding executives of Cheongang gathered in the past to determine important affairs. According to Doyun, it is an abandoned building despite being fully furnished, having running water, having running electricity, and having a working elevator.
One of the floors has two couches and a large glass cabinet filled with alcohols such as Ballatine's scotch whiskey and Jack Daniel's whiskey, though the glass cabinet was broken by Jake after throwing Doyun into it. There is another glass cabinet behind one of the couches, but this one is empty. There is also a bathroom on this floor.
The topmost floor is Changhui's office. It has a desk, two office chairs, a teapot with some teacups, some cabinets, and some shelves full of books.