Archive of Our Own

Recent works

• just be yourself by nottheemblem

  Fandoms: The Hundred Line -Last Defense Academy- (Video Game)  

  • Teen And Up Audiences
  • No Archive Warnings Apply
  • F/M
  • Complete Work

  02 Oct 2025

  Tags

  • No Archive Warnings Apply
  • Tsukumo Ima/Tsukumo Kako
  • Tsukumo Kako
  • Tsukumo Ima
  • Twincest
  • Siblings Kissing
  • Fluff
  • Fluff and Humor

  Summary

  Ima embarrasses Kako, and then she embarrasses herself.

  Series

  • Part 30 of imakako cestember

  Language:

  English

  Words:

  1,483

  Chapters:

  1/1

  Collections:

  1

  Comments:

  4

  Kudos:

  4

  Hits:

  82

• twincest boxslop by nottheemblem

  Fandoms: The Hundred Line -Last Defense Academy- (Video Game)  

  • Teen And Up Audiences
  • No Archive Warnings Apply
  • F/M
  • Complete Work

  30 Sep 2025

  Tags

  • No Archive Warnings Apply
  • Tsukumo Ima/Tsukumo Kako
  • Tsukumo Ima
  • Tsukumo Kako
  • Twincest
  • Mutual Pining
  • Emotional Hurt/Comfort
  • Siblings Kissing
  • Canon-Typical Violence

  Summary

  Ima and Kako are arguing, but they're also the only thing on each other's minds.

  Set during Box of Blessing. A reframing of their argument more in line with their usual characterization.

  Series

  • Part 29 of imakako cestember

  Language:

  English

  Words:

  1,990

  Chapters:

  1/1

  Collections:

  1

  Comments:

  4

  Kudos:

  4

  Bookmarks:

  1

  Hits:

  112

• a sadness in your arms by nottheemblem

  Fandoms: The Hundred Line -Last Defense Academy- (Video Game)  

  • Teen And Up Audiences
  • Creator Chose Not To Use Archive Warnings
  • F/M
  • Complete Work

  29 Sep 2025

  Tags

  • Creator Chose Not To Use Archive Warnings
  • Tsukumo Ima/Tsukumo Kako
  • Tsukumo Ima
  • Tsukumo Kako
  • Twincest
  • Hurt/Comfort
  • Siblings Kissing
  • Praise
  • Ima Tsukumo needs a hug
  • Implied/Referenced Child Abuse

  Summary

  When Ima has trouble sleeping, Kako takes the time to thank him.

  Series

  • Part 28 of imakako cestember

  Language:

  English

  Words:

  1,455

  Chapters:

  1/1

  Collections:

  1

  Comments:

  2

  Kudos:

  5

  Bookmarks:

  1

  Hits:

  86

• coca cola girl by nottheemblem

  Fandoms: The Hundred Line -Last Defense Academy- (Video Game)  

  • Explicit
  • Underage Sex
  • F/M
  • Complete Work

  28 Sep 2025

  Tags

  • Underage Sex
  • Tsukumo Ima/Tsukumo Kako
  • Amemiya Darumi & Tsukumo Kako
  • Tsukumo Ima
  • Tsukumo Kako
  • Twincest
  • Drug Use
  • Siblings Kissing
  • Kako Tsukumo does Cocaine

  Summary

  When Kako feels down, Darumi offers her a solution for any and all her problems. Ima is left to deal with what happens next.

  Series

  • Part 27 of imakako cestember

  Language:

  English

  Words:

  2,323

  Chapters:

  1/1

  Collections:

  1

  Comments:

  3

  Kudos:

  4

  Hits:

  148

• stay asleep by nottheemblem

  Fandoms: The Hundred Line -Last Defense Academy- (Video Game)  

  • Mature
  • Creator Chose Not To Use Archive Warnings
  • F/M
  • Complete Work

  26 Sep 2025

  Tags

  • Creator Chose Not To Use Archive Warnings
  • Tsukumo Ima/Tsukumo Kako
  • Tsukumo Ima
  • Tsukumo Kako
  • Twincest
  • Somnophilia
  • Dry Humping

  Summary

  Kako isn't sure what it would mean to kiss her brother. She ends up doing way more when Ima's asleep.

  Series

  • Part 26 of imakako cestember

  Language:

  English

  Words:

  1,628

  Chapters:

  1/1

  Collections:

  1

  Comments:

  4

  Kudos:

  7

  Bookmarks:

  1

  Hits:

  212