Mustru is a fine-dining restaurant in Busan that serves French-style tasting menus. The courses move through dishes such as conch, seafood, and Iberico pork as the main. Reservations are effectively required one day in advance, and after booking the restaurant sends the address and parking information by text message. The space holds six bar seats plus two-person and four-person tables, and it is small enough that there is nowhere to wait even if you arrive early.