Described as a "crappy" gambler, Hong Jin got into debt to a local crime boss and ran away from his home by joining The armed forces of the Republic of Korea, so that creditors could not catch up with him.

After enlisting in the army, Hong Jin realized the value of serving the army, which freed him from bad habits and turned him into a completely new person, strong and selfless. Eventually, he rose through the ranks and joined the 13th Special Forces Brigade, receiving the name "Horangi". Horangi, who was assigned to perform particularly important tasks, was popular enough that there were rumors about him regarding his mask.

At some point in 2022, Horangi joined KorTac as a contractor