Heyji, which translates to "black chicken," is a trendy café located in Charoen Krung. It offers a delightful selection of Hong Kong tea, Chinese tea, nitrogen coffee, and homemade pastries. The café is open from Tuesday to Sunday, from 9:00 AM to 6:00 PM, and is conveniently situated on Soi Charoen Krung 43, directly across from the Bang Rak central post office. Tourists can park their cars at the Cat Tower building and take a short walk to the café.