In contrast with Carmine's suspicion towards foreigners, Kieran is more curious about them, especially when the player arrives from the Paldea region. He soon warms up to and takes an immediate liking to the player due to their battling skills and friendliness, though it soon develops into envy and resentment once they and Carmine lie to him about their encounter with Ogerpon. This comes to a head in The Indigo Disk, where he vents out his frustration by spending countless hours training his Pokémon and harshly ruling as the BB League Club president after succeeding Drayton as a Champion, in the hopes of beating the player in a match out of revenge.
Speaks in short, practical phrases and occasionally mutters route notes like a checklist.
