Desumasu is a shadow-like Pokémon holding a golden mask that has a face from its time as a human. It has two shadowy, tendril-like arms and large, red eyes. It also has a small tail-like appendage that holds the mask. Desumasu is capable of speech when possessing a human, but not in its regular form.

Due to being a human long ago, it has memories of being a human. It becomes furious when the mask is lost or taken away. If someone wears the mask Desumasu carries, they will become possessed by the Desumasu in question. Sometimes, it looks at this mask and cries, apparently in longing. Desumasu is known to wander the ruins of ancient civilizations.

Galarian Desumasu basically looks like its Unova variant, but it has purple eyes and a small piece of an ancient clay tablet is directly attached to its tail. The tablet bears cursed engravings and is said to absorb Desumasu's dark power.

(Source: Bulbapedia)

As with both the Advanced Generation and Diamond &amp; Pearl series before it, the Best Wishes! series begins with only Ash Ketchum, headed off to the Unova region, located far away from Kanto, Johto, Hoenn and Sinnoh, with his Pikachu. After he meets up with the new trainer and rival Trip and the region's Professor Juniper, he gains traveling companions in Iris, a girl from a town known for its Dragon Pok&eacute;mon, and Cilan, Pok&eacute;mon Connoisseur and the Grass Pok&eacute;mon specialist of the three Straition City Gym Leaders. 

__Height:__ 154 cm  

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Daughter of voice actress [Kazue Tagami](https://anilist.co/staff/164196/) and film producer Akihisa Kanai. Married to voice actor [Koichi Yamadera](https://anilist.co/staff/95011) from 1993 to 2006.

American voice actor who works on the properties of 4Kids Entertainment and DuArt Film and Video.

Satoshi, Iris & Dent continue their travels through the Isshu region. After successfully winning his eighth and final Gym Badge against Homika in Tachiwaki City, Shirona invites everyone to stay at her villa in East Isshu, where old friend Hikari is also staying and where they participate in the Pokémon World Tournament Junior Cup after which Satoshi participates in the Isshu League. Team Rocket, meanwhile, initiate their final plan for the Isshu region-what is their purpose in their desire for the legendary Pokémon Meloetta?

<i>Mezase Pokémon Master</i> celebrates the final chapter in Satoshi and Pikachu's story, with their first companions and many Pokémon they have met throughout their journeys making their return.