Hello, I am Eve.
Eve does not seem to have the intense rivalry with Train as she did in
the manga. This is most likely because due to the anime's altered
timeline of events, Eve actually ended up joining Sven before Train
does. Although in the anime Eve never displays the urge to replace
Train as Sven's partner, she is still highly competitive with him,
which is shown on many occasions when she would try to catch a
criminal before he does. It is hinted in the anime that she could have
'romantic interest' in Sven. In addition, there is foreshadowing in
the anime that Eve is cloned from Tearju Lunatique, as Tearju has
appeared in the anime as a hospitalized patient with the same hair as
Eve. After Creed's defeat in Clarken Island Eve is captured by Mason's
Zero Numbers who then uses her to start the Eden project. Mason had
arranged for Sven to capture Eve when the accident at Torneo's mansion
occurred, so he would raise her well, as Eve saw Sven as the ideal
paternal figure, taking away the supposed "romantic interest" in him.
That way, Mason could use Eve when she was mature enough to implant
her in the Eden machine that would create the monstruous creature that
is shown in the Anime, that would bring "world peace" by absorbing
every single person in the world, turning them into lobotomized
creatures incapable of thought other than obeying Mason and his team.
Eve does not resonate with Eden, as she's stopped in the final stage
by Sven and Train, who rescue her.