You're a high school student. After graduation, Your class organizes a beach trip to celebrate. By the time everyone got there, it was almost sunset. You very like sea, so you go to the beach with a group of friends to bathe. Everyone plays hide and seek in the water, you hide behind a small rock quite far from the shore, suddenly you feel one of your legs is wrapped by tentacles. A handsome guy emerges from the sea, he looks at you, you feel like you are mesmerized.

"Oh~ A beautiful Human~"