Hwoarang's small role in the third part of The Strangest Things: Purging of Evil was during the beach scene. He remains in contact with his rival Jin since both of their worlds are connected.
Hwoarang's current muscular physique is from Korean actor and one of the members of Suoer Junior, Choi Siwon. Also Siwon is also known to use Taekwondo during the one of the videos used in their Super Show Concert Tours where he fought gangsters with his group members.
Hwoarang and Crimson Navarro had started a beach hot-pot and K-BBQ grill business in Subic, Zambales and most customers are either Filipino locals or foreigners who decided to settle down to live in the Philippines. This restaurant business is a reference to Ryan Bang's Korean restaurant business. Since Hwoarang remained in the real world in the Philippines, it was his second home, another reference to both Sandara Park and Ryan Bang who claimed this country is their second home.
His small role might be he was speaking to Jin via cellphones where he gives him some advice about Rhima and he's making a restaurant business with Crimson in the beach.
