Leader of the Jjintta Set brothers and also firstborn. He has a rather fierce rivalry with Nabi and is extremely protective of Doki. In episode 2 He misunderstands that Nabi was forcing her in a relationship, but realizes otherwise later. In episode 5, He gives Nabi a ticket to "Paradise" albeit reluctantly. In the episodes it is unclear what motivates his behavior, but in 2016 the creator shared that Il-ho's motivation is his parentage