In "Pikachu to Eevee Friends," Eevee shares the "Eevee House" with its evolved forms—Vaporeon, Jolteon, Flareon, Espeon, Umbreon, Leafeon, Glaceon, and Sylveon—during a sleepover party and feast organized by Sylveon. Eevee greets visitors Pikachu, Axew, Oshawott, and Pansage with energetic playfulness, sliding down a grassy slope and accidentally colliding with Axew before both bounce back cheerfully. This resilience shines as Eevee dives into group activities, chasing Jolteon and Axew through the house, unintentionally toppling Glaceon’s ice sculptures and rustling Leafeon’s resting spot.

Eevee acts as a unifying force among the Eeveelutions, coaxing the shy Flareon into joining the fun and interacting seamlessly with affectionate Jolteon or artistic Glaceon. At the talent show, Eevee watches without performing but revels in group festivities like feasting and stargazing. The narrative focuses solely on this gathering, depicting Eevee cohabiting with its evolutions without exploring origins, trainers, evolution potential, or past adventures. Development centers on spontaneous interactions during the single-day event. The story closes with the group retiring after the celebrations, followed by playful antics continuing into the next day as shown in the credits.