Words: 848, Chapters: 1/?, Language: English
- Fandoms: Ben 10 Series, 名探偵コナン | Detective Conan | Case Closed, The Avengers (Marvel Movies), Marvel, X-Men '97 (Cartoon 2024), X-Men Evolution (Cartoon)
- Rating: General Audiences
- Warnings: Graphic Depictions Of Violence
- Categories: F/M
- Characters: Sera Masumi, Ben Tennyson, Peter Parker, Shuri (Marvel), Kate Bishop, Steve Rogers, Tony Stark, Natasha Romanov (Marvel), Clint Barton, Thor (Marvel), Bruce Banner, Nick Fury, Laura Kinney, Kevin Levin, Gwen Tennyson, Kudou Shinichi | Edogawa Conan, Mouri Ran, Mouri Kogorou, Amuro Tooru | Furuya Rei, Akai Shuuichi | Okiya Subaru, Logan (X-Men), Jean Grey, Scott Summers, Remy LeBeau, Rogue (X-Men), Jubilation Lee, Roberto da Costa, Kurt Wagner, Kitty Pryde, Ororo Munroe, Morph (X-Men '97), Lucas Bishop, Max Tennyson, Rook Blonko, Loki (Marvel)
- Relationships: Sera Masumi/Ben Tennyson
- Additional Tags: Avenger!Ben Tennyson, Avenger!Masumi Akai, Cyborg Ben Tennyson, Dark Past, Angst and Hurt/Comfort, Multiple Crossovers, alternative universe