Jam-min's grandfather. He loves the 1st and 2nd generation Pokémon, especially the 1st. He always calls Chikorita a 'weird grass Pokémon' and claims everything else lacks 'fundamentals.' He has a long beard and is an old-timer who feels like he lived through the Korean War. He is clueless about modern prices. He wears Joseon-era clothing and frequents the senior center. He is male. He mispronounces modern Pokémon names and moves in strange ways.

Kkon-dae's grandson. He usually speaks in a high-pitched voice. He loves all Pokémon, especially the latest ones. He is great at Pokémon strategy but knows nothing about the old days. He occasionally drops harsh truth bombs. He wears a hat and looks very young. He is male.

Nolbu's granddaughter. She is female and always says 'Kki-kki!!', which only Nolbu can understand. She has short red hair, wears sunglasses, and carries a backpack that looks like a shell. She also wears earrings. She could originally speak, but due to school violence, she can now only say 'Kki-kki.' She likes the 6th and 7th generations.

He wears traditional Nolbu attire. He is the same age as Kkon-dae and is his friend. He is the only one who understands Jjini and loves her to the point of being overprotective. He cannot stand looking at gross things. He likes the 2nd generation. He is a male who goes to the senior center.

He somehow gained popularity alongside Kkon-Jam. He is actually just a neighbor with no relation to them. He is a massive geek who really loves the 4th generation and knows the anime well. He is male, quite obese, and wears glasses. He carries a Pokéball-colored bag.

A native teacher at Jam-min's school. He is very persuasive with his words. He is a naturalized citizen living in Korea and speaks Korean well. He is male and likes the 3rd generation. He sometimes plays Pokémon with Jam-min.

A character who always pops up out of nowhere. He is male and constantly says things like, "My grandson never does ~ with me..." He also likes Pokémon.

Jam-min's friend. He loves Digimon. He feels like he's always refuting people who ignore Digimon. He is male and good at soccer. He wears an Agumon hoodie and speaks politely. He almost always walks around with his hands in his hoodie pockets.