In Pokémon Conquest, Eevee does not evolve according to your
gender it evolves based on either its equipped evolution stone or
according to your Link level or its stat. Eevee will evolve into
Vaporeon once you have equipped a Water Stone to it, it will evolve
into Flareon once you have equipped a Fire Stone to it, it will
evolve into Jolteon once you have equipped a Thunderstone to it, it
will evolve to Espeon at the 70+% Link level and accomplishing
something in the Illusio Kingdom, it will evolve into Umbreon once
it is at the 70+% Link level and after accomplishing any activity
in the Yaksha Kingdom, it will evolve into Leafeon once its Defense
stat is 94 and you have done something in the Greenleaf Kingdom and
it will evolve to Glaceon once its Attack stat is 91 and you have
done something in the Nixtorm Kingdom.