In legend, Huuma Mina is an immortal ninja with silver hair and silver eyes. A mad scientist, Arakawa Murasaki, tries to capture her in order to research her secret of immortalization. However, will Murasaki succeed in her study? Will science be able to reveal the secret of immortalization?
All Reviews:
Positive (14) - 85% of the 14 user reviews for this game are positive.
Release Date:
Nov 11, 2020

Sign in to add this item to your wishlist, follow it, or mark it as ignored

Check out the entire Hajime Doujin Circle franchise on Steam

Buy Huuma Mina: The Secret of Immortality (Censored)


About This Game

Legend has it that Huuma Mina is an immortal ninja with silver hair and silver eyes. In the modern era, she tries to hide and live in seclusion. However, a mad scientist, Arakawa Murasaki, is obsessed with the research on her immortalization and tries to capture her again. Is Arakawa Murasaki able to capture Mina and reveal the secret with modern science and technology?
For the best experience, a controller is recommended!

  • Hack and Slash Style Fighting!

    You can easily combine two attacks to develop your own fighting style. Dodging and Guarding are to defend yourself against enemies. What's even better, you can also equip 2 skills to improve the combat efficiency.

  • Armor Durability!

    All armor in the game has a specific durability. Once it reaches zero, your armor will break and all incoming attacks will interrupt outgoing action.

  • Real-time Cut-scenes!

    The story is told by cut-scenes and can be played again after you complete the game.

  • Character Customization!

    There are 6 customization slots. You can change her hair, underwear, handwear, footwear, outfit and her accessories. Additionally, each unlocked item will make your character stronger.

  • Story Quests and Optional Quests!

    You can quest based on story progress or do some optional quests, like searching for missing cats...etc.

Mature Content Description

The developers describe the content like this:

This Game may contain content not appropriate for all ages, or may not be appropriate for viewing at work: Nudity or Sexual Content, General Mature Content, including lingerie, bodysuit, sexy costumes, boobs jiggling, boobs size modification, restraints, bondage, imprisoning, a few torture cut-scene, torture gameplay (showing silhouette instead), and criminal activities (kidnapping).
All Characters involved in sexual content are over the age of 18.
Some content would be considered girls-loving-girls homosexuality.

System Requirements

    • OS: Windows 7, Windows 8.1, Windows 10
    • Processor: Intel Core i5
    • Memory: 4 GB RAM
    • Graphics: NVidia GeFore GTS 450 / ATI Radeon HD
    • DirectX: Version 9.0
    • Storage: 5 GB available space
    • OS: Windows 7, Windows 8.1, Windows 10
    • Processor: Intel Core i7
    • Memory: 8 GB RAM
    • Graphics: NVidia GeFore GTX 970
    • DirectX: Version 9.0
    • Storage: 5 GB available space

More from Hajime Doujin Circle

Customer reviews

Review Type

Purchase Type


Date Range
To view reviews within a date range, please click and drag a selection on a graph above or click on a specific bar.

Show graph

Filter reviews by the user's playtime when the review was written:

No minimum to No maximum
Display As:
Show graph
Hide graph
Excluding Off-topic Review Activity
There are no more reviews that match the filters set above
Adjust the filters above to see other reviews
Loading reviews...