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1. Concert Troubles by foggyaucklandview

   Fandoms: 데뷔 못 하면 죽는 병 걸림 - 백덕수 | Debut or Die - Baek Deoksoo  

   • Not Rated
   • Major Character Death
   • No category
   • Complete Work

   27 Jan 2026

   Tags

   • Major Character Death
   • Park Moondae | Ryu Gunwoo & TeSTAR Ensemble
   • Lee "Keun" Sejin & Park Moondae | Ryu Gunwoo
   • Park Moondae | Ryu Gunwoo & Seon Ahyeon
   • TeSTAR Ensemble (Debut or Die)
   • Park Moondae | Ryu Gunwoo
   • Lee "Keun" Sejin
   • Bae Sejin
   • Seon Ahyeon
   • Kim Raebin
   • Cha Eugene
   • Ryu Cheongwoo
   • Shin Jaehyun | Cheongryeo
   • TeSTAR Loviewers (Debut or Die)
   • Heavy Angst
   • Sickfic
   • Fainting
   • Blood and Gore
   • Hurt/Comfort
   • Idols
   • Social Media
   • Concerts
   • Hurt Park Moondae | Ryu Gunwoo
   • Medical Inaccuracies
   • Panic Attacks
   • Seizures
   • Suicide
   • Sad Ending

   Summary

   While singing the beginning of the final chorus he felt something burst inside him. Literally burst.

   He stopped.

   Stopped singing,

   stopped dancing,

   stopped breathing.

   TLDR: Ryu Gunwoo didn't look into Moondae's family medical history and ends up collapsing from a genetic disease during a concert.

   Series

   • Part 1 of Debut or Die! (But just the die)

   Language:

   English

   Words:

   10,038

   Chapters:

   2/2

   Comments:

   43

   Kudos:

   158

   Bookmarks:

   12

   Hits:

   1,488