Unknown Species of Shrimp - Microprosthema sp.

Taken around February 2024 in Nagahama Maizuru, Kyoto Japan. Underneath an oyster shell cluster in approximately 4 meters of water. It is likely Microprosthema sp. but the only ones recorded in Japan are found far more south in Okinawa and the Ryukyu's.
I hope to find some info on this species. Right now we are unsure exactly what it could be.
Its always fun finding new guys like this. If anyone might have an idea please let me know.

[@efeek77]

By the look of its posture and unusual biological design, it looks like some sort of sea scorpion. But I might be wrong.

[@efeek77]

Quick update, the little guy is called a Microprosthema.

[@MaverickDiving]

@@efeek77 Correct. That's the genus. However, the only ones in Japan are tropical species only found near Okinawa or Ryukyu islands. This one was recorded in temperate Sea of Japan during winter. Highly unusual.