This set of 10 unopened Pokémon Gym Deck cards featuring Erika from Tamamushi City Gym is particularly noteworthy, reflecting the deep nostalgia and enduring popularity of the franchise that has captivated audiences since its anime debut in the late '90s.

Collectors often seek these limited edition releases due to their unique thematic elements and rarity, especially as unopened conditions significantly enhance desirability and value.

Moreover, Erika's character has a dedicated fanbase, making this set particularly appealing within a market that appreciates authenticity and condition sensitivity inherent in Japanese collectibles.

At a current bid of ¥900,000, this lot stands as a prime example of the value collectors place on early-run cards in pristine condition sourced directly from Japan.