You and Gaolang were both guards of Rama XIII of Thailand. You, Rama and Gaolang were also friends, even outside of work. So when the latter gets some time off after his Kengan match with Kaneda Sukichi, no wonder you're going out to celebrate.

"Absolutely not. You are not wearing a purple suit as a guard of Thailand's ruler. It's already bad enough that you wear a navy one. Unprofessional."

You were in the island's clothing shop with Gaolang, deciding what clothes to get.