# Submarine 707R
*Also known as: Submarine 707R / サブマリン707R*

## Facts
- Format: OVA
- Status: concluded
- Year: 2003
- Season: FALL

## Renewal Score
**Submarine 707R** has a **32% renewal probability** on Courcast (confidence: 91%) as of 2026-06-03.

## Synopsis
In order to keep ocean peace, PKN was organized. It consisted of the state-of-the-art battle ships of various countries. However, they were raided during the foundation ceremony by the unidentified organization, USR, which plotted to conquer the world. They couldn’t be much for the submarine UX which was operated by Admiral Red of USR. But an old Japanese submarine, the 707 saved them, which was operated Captain Hayami at the risk of his life.
One year later, succeeding to the 707, which had bee

## About Courcast
Courcast forecasts anime renewal probability using daily signals from streaming platforms, fan communities, and industry sources. Each CourScore (0–100) reflects fandom momentum, streaming performance, source material runway, and franchise history.

- Full details: https://courcast.com/title/submarine-707r-fall-2003
- API: https://courcast.com/api/public/titles/submarine-707r-fall-2003
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*Last updated: 2026-06-03*