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1. An Omega in a World That Doesn’t Know Him by Soulmates_sherliam

   Fandoms: ダイヤのA | Daiya no A | Ace of Diamond  

   • Explicit
   • Creator Chose Not To Use Archive Warnings, Graphic Depictions Of Violence
   • M/M
   • Work in Progress

   21 Mar 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Graphic Depictions Of Violence
   • Miyuki Kazuya/Sawamura Eijun
   • Miyuki Kazuya
   • Sawamura Eijun
   • Kuramochi Youichi
   • Kominato Haruichi
   • Kominato Ryousuke
   • Kanemaru Shinji
   • Watanabe Hisashi
   • Kataoka Tesshin
   • Takashima Rei (Daiya no A)
   • Alternate Universe - High School
   • Parallel Universes
   • Dimension Travel
   • Sawamura Eijun is a Ray of Sunshine
   • Omega Sawamura Eijun
   • Established Miyuki Kazuya/Sawamura Eijun
   • Sawamura Eijun Has the Yips
   • Sawamura Eijun Deserves the World
   • Top Miyuki Kazuya/Bottom Sawamura Eijun
   • Pining Miyuki Kazuya
   • POV Sawamura Eijun
   • Head Injury
   • Protective Miyuki Kazuya
   • Protective Kuramochi Youichi
   • Sawamura Eijun Needs a Hug
   • Attempted Sexual Assault
   • Fluff and Hurt/Comfort
   • Heavy Angst

   Summary

   Sawamura Eijun falls into a parallel world identical to his own—except it doesn’t know what an omega is.

   Language:

   English

   Words:

   49,379

   Chapters:

   13/?

   Comments:

   79

   Kudos:

   145

   Bookmarks:

   25

   Hits:

   4,656