The Pokémon Card 151 carton box featuring Mew and Pikachu is a notable piece from the celebrated Pokémon franchise, which has remained a cornerstone of Japanese pop culture since its anime debut in 1997.

This unopened carton is particularly appealing to collectors due to the iconic nature of its characters, both of whom are emblematic of the series' enduring popularity and nostalgic value.

Given the trend of sealed items achieving premium prices in the collector market, especially for limited editions from significant milestones like the 151 series, the ¥555,000 bid reflects a discerning demand among enthusiasts for pristine, authentic Japanese collectibles.

Furthermore, the careful long-term storage conditions and the direct purchase from a physical store bolster the value proposition for serious collectors looking for verified provenance in the Japanese market.