Yomiuri group companies and The Pokémon Company have already collaborated in various fields. In 2009, The Yomiuri Shimbun began running an educational column for children titled "Pokémon to Issho ni Oboeyo! Kotowaza Daihyakka" (Let's memorize a proverb encyclopedia with Pokémon!) in its morning edition. In 2014, "The Pokémon Ryuosen" — a Pokémon gaming event named after the Ryuo, the most prestigious championship in shogi — was held for the first time. The "Pokémon WONDER" outdoor adventure attraction, which launched in 2021, allows visitors to search for Pokémon within the natural landscape of Yomiuriland.