“Mission Mermaiden - Hasumi and the Deep Sea Sisters” (often associated with the Blue Archive

The game is a 2D action-platformer where players control Hasumi through various underwater and facility stages.

Sample field checklist (operational essentials)

In the year , Earth has been ravaged by an alien invasion. The protagonist, Hasumi Shiori , is a newly official member of the military after successfully dealing with a previous meteor disaster. She is sent to the Karimantan Jungle on a secret mission to confirm the existence of a rumored bioweapon and investigate strange life forms.

“You came,” said the eldest, her tone a tide that pulled at Hasumi’s ribs.

The ocean has always been a source of fascination and reverence in Japanese culture. The country's extensive coastline and reliance on the sea for food and trade have fostered a deep respect for the marine world and its inhabitants. "Mission Mermaiden" captures this fascination, transporting readers to an underwater realm that is both fantastical and eerily real.

At the heart of "Mission Mermaiden" is the character of Hasumi, a young and adventurous mermaid who embodies the spirit of the sea. According to the legend, Hasumi is not just any ordinary mermaid but a member of a secretive and ancient sisterhood of mermaids who inhabit the depths of the ocean. This sisterhood, rumored to possess magical powers and a deep understanding of the sea and its creatures, is said to have existed for centuries, with its members working to maintain the delicate balance of the marine ecosystem.