Pokémon Horizons: The Series - Season 1 Episode 43 A Letter of Challenge from the Explorers

Only 30 boxes of the famous treat "Sea Digdaman" are sold every day, and you have to stand in line for them too. However, as a thank you for helping the store manager, Liko and Roy are given some even without having to stand in line. A certain person from the Explorers was standing in line for the treats as well, though... and as they're on their way back to the Brave Asagi, Roy notices a letter of challenge that has been stuck to Hogator's back...?!