Guilty Smile manga volume 2 features story by Kou Unazuki and art by Clione.

Time is running out for Lailah, and it's all Khalifa's fault. The curse of the Guilty Smile is fatal - when the flower upon her neck blooms in full, she will die. Terrified of losing his beloved, Khalifa searches without rest for a cure… but as each fruitless day passes, Lailah's nightmarish fate grows ever closer.