Book (Practical) Entertainment Mermaid Observation Diary

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Various Arts and Entertainments
The secret of the two boys, which adults cannot tell. For them it was an imaginary creature. Until that summer -. Ken-kun, who was cautious and timid, and Shun-kun, who was bold and unsuitable. The girl whom the two boys picked up in the sea was a "mermaid" girl who is said to be a "dangerous existence" in the village. "Even if you see that, don't get close." Does this encounter bring tragedy? Or - 『, you don't eat human beings? 』