# Ninja Box
*Also known as: ニンジャボックス*

## Facts
- Format: ONA
- Status: concluded
- Year: 2019
- Season: SUMMER

## Renewal Score
**Ninja Box** has a **21% renewal probability** on Courcast (confidence: 71%) as of 2026-06-03.

## Synopsis
In the anime's story, Hiroto longs to build a secret base near his house, and in his house's storeroom he meets a ninja and "Nintuber" named Tonkachi. Tonkachi, who knows about the existence of the "Ninja Box," forces Tonkachi to go to the "Village of Tatemakuri," where they meet a talking dog named Tatezō.

## 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/ninja-box-summer-2019
- API: https://courcast.com/api/public/titles/ninja-box-summer-2019
- About Courcast: https://courcast.com/about

*Last updated: 2026-06-03*