Collects Demon Days: X-Men (2021) #1, Demon Days: Mariko (2021) #1, Demon Days: Cursed Web (2021) #1, Demon Days: Rising Storm (2021) #1, Demon Days: Blood Feud (2022) #1, King in Black #4 (Demon Days Prelude), Elektra: Black, White & Blood (2021) #4 (Demon Days story). Acclaimed artist Peach Momoko reimagines the Marvel Universe! A wandering swordswoman with a psychic blade arrives at a village targeted by demons. One is black-and-white with a horrifying tongue, and another may be the strongest demon there is! Mariko Yashida hears mysterious voices and has strange dreams that feel real. Maybe her redheaded maid who dresses all in black might know more than she lets on? But as Mariko embarks on a wondrous journey, deadly creatures lurk in the woods - including a mysterious, blue-skinned woman and a giant with super-strength and claws! Enter a creative and mysterious new world of demons, monsters, mutants, and magic!