As she ventures deeper into the jungle and its hidden underground research facilities, Hasumi discovers that the manufactured monsters are the work of two enigmatic individuals known as the "Iron Mermaid" sisters. Their true goals remain a mystery, but their actions threaten to upend the fragile peace the world has just found. The story is a direct continuation of Hakkaku-ya's previous title, Tail Underclast (also starring Hasumi), but new players can still enjoy it as a standalone action experience.
The story of Hasumi and the Deep Sea Sisters is a testament to the power of human ingenuity and determination. Their journey to explore the ocean and uncover its secrets is an inspiration to us all, a reminder that with hard work, passion, and a commitment to discovery, we can achieve great things. Mission Mermaiden - Hasumi and the Deep Sea Sis...
: Earth has been ravaged by an alien invasion. Hasumi is sent to the Karimantan Jungle , a remote land, to investigate rumors of a biological weapon. As she ventures deeper into the jungle and
Waiting for her in the thermal vents of the Mariana Trench was the , a trio of guardians: Opal: The scout with translucent skin. Keto: The heavy hitter with armor made of volcanic glass. The story of Hasumi and the Deep Sea
Whether you are a fan of fantasy, high-stakes adventure, or simply the magic of the ocean, this story offers a refreshing, deep-dive into a world rarely explored.
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Earth has been thoroughly ravaged by a devastating alien invasion .