The official Japanese Pokémon Twitter account announced that episode 10 of the YouTube series
After School Pokémon Research Club (放課後ポケモン研究部) is available to watch. The
tenth episode broadcast on the official Japanese Pokémon YouTube channel on July 6th, 2023 and was region locked to Japan.
At the end of the episode, a serial code for Pokémon Scarlet and Violet was announced to give viewers
50 Fighting Tera Shards. Players could obtain this item from July 6th, 2023 until July 31st, 2023 at 23:59 JST. The code is:
TERATYPECHANGE
Source:
https://twitter.com/Pokemon_cojp/status/1676908857094807552