Cross-Dressing Villainess Cecilia Sylvie, Vol. 2 (manga)

When she’s reincarnated as the villainess in a reverse harem dating sim with only Bad
Ends in sight, Cecilia Sylvie makes a decision—become a boy, support Lean’s love life
and all’s well that ends well...right? But her fiancée Oscar still has a strange fascination
with “Cecilia,” Gil gave her his Sacred Artifact, and the heroine seems intent on
pursuing the Cecil route...