Flareon

Gray Pokémon with red eyes and yellow ring on chest, appears in explicit sexual scenes with Eevee starting from page 7.

Orange fluffy Pokémon with long ears and white neck fur, central character appearing in all 19 pages in multiple explicit sexual positions and group scenes with other Pokémon evolutions.

Blue Pokémon with pink bow, engaged in explicit group sexual activities with Eevee and other evolutions.