What does Serena’s Eevee evolve into?

What does Serena’s Eevee evolve into? With Serena’s request and encouragement of seeing her hidden strength, Eevee extended an appendage from her mane around Serena’s arm and evolved into Sylveon.

With Serena’s request and encouragement of seeing her hidden strength, Eevee extended an appendage from her mane around Serena’s arm and evolved into Sylveon.