5 epsNew on Back'n'Time
The Prime: Rejected Heir Is the Final Boss
Episodes 1–5 stream here.
Episodes5 episodes · 1–5 free here
Free on Back'n'Time
The story
Quick answer: 5 episodes, English original audio, and episodes 1–5 play right here tonight.
In 2099, Insectoids invade Earth. Kellan, abandoned at birth, was secretly created by Dr. Fane as humanity’s ultimate warrior.
But his father sees him as nothing but a gene-defective failure. As the human defense line collapses, his mother sacrifices herself to protect him, revealing the truth — she is his mother. Consumed by grief and rage, Kellan unleashes his true power and destroys the Insectoids’ ultimate weapon.
- Episodes
- 5
- Language
- English
- Free here
- Episodes 1–5
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Questions people ask
How many episodes are there in The Prime: Rejected Heir Is the Final Boss?
The Prime: Rejected Heir Is the Final Boss has 5 episodes in total. Short dramas run about one to two minutes an episode, so it is an easy one-sitting binge. Episodes 1–5 play right here on Back'n'Time.
Can I watch The Prime: Rejected Heir Is the Final Boss for free?
Yes — the first 5 episodes are free to watch on this page, no account and no sign-up.
What happens after episode 5?
Tap episode 6, or any tile with a lock on it, and we hand you over to the official app at that episode. If the app isn't installed yet, you'll land on its store page first. We don't host the locked episodes and we never ask for payment details.
What's The Prime: Rejected Heir Is the Final Boss about?
The story section above has the setup without spoilers past episode 5.
What language is The Prime: Rejected Heir Is the Final Boss in?
The audio is English. It was added to Back'n'Time on Oct 30, 2026.
Episode 6 continues in the app
You've watched the free part. The Prime: Rejected Heir Is the Final Boss carries on in the official app — we'll open it at this episode.
Continue in the official appKeep watching 1–5