Oxygen
Series Metadata
Listing Series
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Breathe It In by AristoMuse
Fandoms: Batman - All Media Types, Batman: Under the Red Hood (2010), DC KO: Knightfight (2025), Red Hood and the Outlaws (Comics), DC Extended Universe
17 Jan 2026
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Summary
One minute, you're helping Jason undress from a night's worth of patrol as Red Hood. The next, you find yourself in a Gotham that you don't recognize, empty and stifling, with only Batman to watch over its deserted streets.
Only, this Batman had a red helmet.
(Based on DC KO: Knightfight)
Series
- Part 1 of Oxygen
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Gasping For Air by AristoMuse
Fandoms: Batman - All Media Types, Batman: Under the Red Hood (2010), DC Extended Universe, DC KO: Knightfight (2025), Red Hood and the Outlaws (Comics)
13 Feb 2026
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Summary
Older Jason was so unused to affection still, and you had been doing your best to acclimate him back to a more hands-y relationship.
This? This, you were wholeheartedly on board with.
(A sexually explicit companion piece to "Breathe It In." Not necessary to read to enjoy this, but is highly recommended. Based on DC KO: Knightfight)
Series
- Part 2 of Oxygen
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Suffocate by AristoMuse
Fandoms: Batman - All Media Types, Batman: Under the Red Hood (2010), Red Hood and the Outlaws (Comics), DC Extended Universe, DC KO: Knightfight (2025)
08 Mar 2026
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Summary
The moment the first explosion happened, Jason's heart stopped.
Because you had left the apartment in tears— tears that he had caused— and now he had no idea where you were.
(A companion piece/slight prequel to "Breathe It In." Based on DC KO: Knightfight)
Series
- Part 3 of Oxygen
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Breathe It Out by AristoMuse
Fandoms: Batman - All Media Types, DC Extended Universe, Batman: Under the Red Hood (2010), Red Hood and the Outlaws (Comics)
16 Aug 2026
Tags
Summary
You were finally back in your time, safe and sound, and reunited with the love of your life. The city was alive, and the air was clean— as clean as it could be in Gotham, at least.
So why were you still feeling like this? And why was Jason watching you like that?
(A sequel to "Breathe It In," based on DC KO: Knightfight)
Series
- Part 4 of Oxygen