(VERY SLOW UPDATE I'M SORRYYYYYY) Demon slayer/ kimetsu no yaiba demons x reader Some oneshot/scenario 'cuz idk why This is my first story and my english is not that good so plzzz forgive me if there was a mistake or somthing ╥﹏╥

What if the all mighty and feared was once a human? A human who was turned into a curse by the person he vowed to kill. The one person who had power over him. The first curse to roam the earth. The Queen who created the King.

The CIA's most prized agent is put on an assignment with WISE's greatest spy. What could go wrong? Contains violence, depictions of sexual acts, and other mature themes. All Spy x Family characters and settings belong to Tatsuya Endo.

─── 𝐇𝐢𝐬 𝐨𝐛𝐬𝐞𝐬𝐬𝐢𝐨𝐧 𝐰𝐢𝐭𝐡 𝐡𝐞𝐫, 𝐬𝐭𝐚𝐫𝐭𝐞𝐝 𝐟𝐫𝐨𝐦 𝐭𝐡𝐞 𝐬𝐜𝐞𝐧𝐭 𝐚𝐧𝐝 𝐭𝐚𝐬𝐭𝐞 𝐨𝐟 𝐡𝐞𝐫 𝐛𝐥𝐨𝐨𝐝. Currently editing! I update whenever I can :)) 𝐖𝐫𝐢𝐭𝐭𝐞𝐧 𝐛𝐲: -𝐏𝐮𝐫𝐞-𝐖𝐡𝐢𝐭𝐞- 09/15/20