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I Left My S-Class Mate for a Hidden SSS Prototype

  • Language: English
  • 12 episodes
  • Added

Episode checklist tick them off as you go

Episodes 1–10 play here for free. The dashed boxes, 11 to 12, open the official app where the rest of the series lives.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  • ✓ Solid box = free preview on this site (10 episodes)
  • Dashed box = continues in the official app (2 episodes)
Watch episodes 1–10 freeContinue from episode 11 in the official app
Episodes
12 (1–10 free here)
Audio
English
Added
Oct 26, 2026
Last checked
Oct 26, 2026

Summary notes spoiler-light, read before episode 1

In short: 12 episodes, in English, original audio — episodes 1–10 play right here.

Undercity bio-tuner Avery Vance rebuilds discarded S-class combat unit Leon Voss from scrap, only for him to abandon her 99 times for wealthy High City heiress Celeste. After his final betrayal leaves her bleeding for dead in the wasteland, she severs their neural bond, takes in broken B-rank Fenris Thorne, unlocks his hidden SSS-class prototype power, and earns fierce loyalty and true love.

Study tip: the first 10 episodes set up every conflict that the remaining 2 episodes pay off — watch them back to back before you decide whether to continue.

How to watch three steps, no sign-up here

  1. Start with the free episodesPress “Watch episodes 1–10 free” and play the first 10 episodes on this site, one after another.
  2. Tap episode 11When episode 10 ends, tap the dashed box for episode 11 in the checklist or in the player’s number row.
  3. Continue in the official appYou are taken to the official app, where episodes 11–12 continue under the app’s own terms.

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Quick Q&A

I Left My S-Class Mate for a Hidden SSS Prototype — how many episodes in total?
I Left My S-Class Mate for a Hidden SSS Prototype has 12 episodes in total. Short-drama episodes usually run one to three minutes, so the whole series takes under an hour from start to finish. Episodes 1–10 can be previewed on this site.
Which language is I Left My S-Class Mate for a Hidden SSS Prototype available in?
I Left My S-Class Mate for a Hidden SSS Prototype is available in English and is filed under our English reading list. We also keep Hindi and Filipino reading lists, but this title is listed in English only.
Which episodes of I Left My S-Class Mate for a Hidden SSS Prototype are free?
Episodes 1 to 10 of I Left My S-Class Mate for a Hidden SSS Prototype can be previewed free on this site — that is 10 of 12 episodes. From episode 11 onward the series continues in the official app.
Where do I continue after episode 10?
Tap episode 11 in the checklist above (or the yellow button under the cover). You will be taken to the official app, where episodes 11–12 are available under the app’s own terms.

Syntax Notes only offers a free preview of episodes 1–10 of I Left My S-Class Mate for a Hidden SSS Prototype; the complete series is available on the official platform.

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