After a LONG time scouring & searching the internet for this I finally found it! This was a doujin that was released physically MANY years ago back in C90 that is one of the few quality Blue Submarine No.6 Doujins ever produced! Thankfully the artist who is known as mommy uploaded a scan to booth & now we can enjoy it here.

With this I do firmly believe we have all the high quality Mutio works on here.

Link to the product page, note it's original format is PDF:
https://mommy.booth.pm/items/5953309

Enjoy!

A new Mutio doujin!? Xmas arrived early this year..... hope someone translates it.

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青色6號，就算在C90也是文藝復興等級............

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Oh wow! Thank you very much DarkMulletFist this is amazing, I've been dying for more content with my favorite cute fish girl Mutio and especially a sweet Mutio x hayami like this!

There's not enough Blue Sub 6 content I surely hope that changes in the near future.

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@MadDrago

It's a hope I have as well, however if I'm being honest I think her content will always remain sparse due to lack of knowledge of her existence. However until the internet completely disappears we can still look fondly on these wonderful Mutio works we do have.

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@DarkMulletFist

Agreed it sucks but I'm glad that at least this anime and our precious fish girl Mutio still have many dedicated fans still to this day!

Last edited on 16 March 2026, 23:05.

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