We could not find a non-stop flight from Tokyo to Chengdu using our United miles so we booked a flight with a layover in Seoul.  We flew economy from Tokyo Narita to Seoul (there were no business class flights available) but since we had a business class flight from Seoul to Chengdu, we spent our time in Seoul at the Asiana Business Class lounge.

The Asiana business class lounge was large and comfortable with many different places to sit.

We preferred the seats pictured below as they were more private and allowed us to charge our laptop.

The lounge had four semi-enclosed private areas to sit.

Free wifi was available throughout the lounge. There were also a few rooms with desktops but they were too dark to take photos.

The lounge did not offer a huge variety of food or beverages although the croissants, nuts and pretzels were tasty.

Overall, while the Asiana business class lounge did not have a large selection of food, it was a very comfortable lounge with plenty of seating.
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Index:  (rest of series)
Introduction
American Airlines Flagship Lounge – Chicago
American Airlines – First Class – Chicago to Tokyo Narita
Akasaka Excel Hotel Tokyu
Tokyo – Devils and Sumo
Asiana Business Class Lounge – Seoul, Korea (this post)
Asiana Airlines – Business Class – Seoul Incheon to Chengdu
Fraser Suites – Chengdu, China
Chengdu, China: Pandas, Pandas and Pandas
Air China (Star Alliance) First Class Lounge – Chengdu, China
Air China – Business Class – Chengdu to Taipei
Forte Orange Hotel Kaifong (Taipei, Taiwan)
Eva Air Lounge – Taipei Taoyuan
Eva Airlines – Business Class – Taipei Taoyuan to Shanghai Pudong
Marriott Executive Apartments, Shanghai, Tomorrow Square
Dragonair/Cathay Pacific Lounge – Shanghai Pudong
American Airlines – First Class – Shanghai Pudong to Chicago