Notes:

"One afternoon, Satoshi ends up meeting Lilie’s older brother Gladio, who set off on a journey to train himself, again by pure chance. Gladio has a Pokémon Satoshi has never seen before with him. He tells Satoshi he doesn’t want to show it to other people all that much. He says the reason for that is related to something that happened in Gladio and Lilie’s past."