surprising to see a new page since the encyclopedia is being released state side
The encyclopedia being released by Seven Seas is only the first edition. 14 new monster girls have been released in the 2nd edition of the encyclopedia, which was released a few weeks ago. This profile is one of them.
This one is an obscure youkai from the Chiba prefecture. Turtles are associated with the Ryuuguu castle (see Urashima Tarou), and centuries ago whenever Chiba fishermen caught a turtle by mistake they would take it home, offer it food and water, then release it back into the sea. The Umi Osho is an incarnation of this reverence, and it's a generally peaceful, wise youkai.
The encyclopedia being released by Seven Seas is only the first edition. 14 new monster girls have been released in the 2nd edition of the encyclopedia, which was released a few weeks ago. This profile is one of them.