"You Are Not My 'Favorite' (Oshi)."

This is included in the anthology comic "I'm a Young Lady, but I Want to Fall in Love as I Please! ~I'll Live However I Want for Happiness~" published by Bushiroad. "I will never love you. Because I am seeking true love." Faced with a prince who speaks lines as if from a game, Lilia remembers her past life. That's right—she is a villainess lady destined to have her engagement broken off by Prince Alto before her. However, for Lilia, that didn't matter at all. Because her "favorite" is her step-brother, Erik. "Then, I shall behave as a temporary fiancée to help you find true love." "Huh? Ah, yes." Lilia decides to continue her engagement with Prince Alto in order to buy time to dote on her step-brother Erik. As time passes, when Lilia proposes breaking off the engagement herself, Alto insists, "I don't want to break off the engagement..." But he said he would never love me, so I was treating this as a purely business-like arrangement, wasn't I? It's a story where whoever shows their feelings first loses, and ultimately the woman ends up in the dominant position.