⚠️Caution! Contains spoilers for Cookie Run: Tower of Adventure.⚠️

A chilling laughter echoes from the depths of the earth. Eyes flash with a sharp, cold glint amidst the pure darkness. Melanchream Cookie flings open the tightly sealed oven door as if it were a mere curtain, making her grand entrance to the sound of thunderous screams! This cookie, who playfully brings the death everyone fears, is said to have been born from unforgettable atrocities and indelible terror. They say she dances atop the graves of the dead in the abyss, using sorrowful shrieks as her music. Whoosh! She swings her scythe and steps in an ominous rhythm, leaving even the sugar to scatter as black ash in her wake. She enjoys it so much that she laughs until the tower shakes and her head pops right off! Her head rolls toward you, whispering sweetly that it will show you the taste of a sugary disaster... A cookie who invites the souls trapped in the mire of tragic fate to a dance with a soft voice. But beware! That touch, once soft as cream, will turn sticky and clinging, eventually tightening its grip on your very soul.

I shall grant death to all living things!

Chronologically, she first appears in Adventure Mode 3. Originally a cookie of literal nothingness born from black dough, she acquired identity and emotions by devouring fragments of the black curse lingering in the oven. Later, she injected memories into other doughs that had taken shape by eating emotional masses like herself, turning them into other Abyss Cookies. In short, she is the eldest daughter among the Abyss Cookies born as pure evil derived from the mother entity known as the Black Curse. After tainting and reviving the memories of Charlotte Cookie, who collapsed while helping other cookies escape, she made her an ally. After defeating and absorbing the Witch's curse to grow stronger, she broke the seal and ventured outside with the other Abyss Cookies.