Aileen finds out that Cedric's new fiancée, Lilia Rainworth, has received threatening letters that were signed by herself. Since she has no memory of doing so, she has her friends help her find out the truth. On the night of the ball, Aileen attends wearing the dress and accessories given to her by Claude. At the same time, Lilia appears at the demon lord's castle.
It's just like a greeting. 
Just a farewell kiss.
.إنّها مجرّد تحيّة. قبلة وداع فقط
Es ist doch nicht mehr
als ein Abschiedskuss.
Mais ce n’est qu’une politesse,
un baiser d’au revoir.
È solo un saluto, un bacio d'addio.
É como uma saudação.
Apenas um beijo de despedida.
Это лишь вежливость… 
поцелуй на прощание!