Kotoko receives a request for help from a giant snake, who is the guardian spirit of Tsukuna Swamp. It appears that a murderer named Tanio Aoi disposed of a body in the snake’s swamp, but there’s something that’s just not sitting right with the snake. After learning about Kuro’s powers, Kotoko asks Kuro to accompany her on this journey, but Kuro declines for a certain reason...
Ever since I ate mermaid 
flesh at the age of eleven,
،مذ أكلت لحم حورية البحر في الحادية عشر من عمري
Seit ich mit elf Jahren
das Fleisch einer Nixe aß,
Desde que comí carne de sirena
a los 11 años,
Desde que comí carne de sirena
a los 11 años,
Depuis que j’ai mangé
de la chair de sirène à 11 ans,
Da quando a undici anni
Desde que eu comi carne
de sereia aos onze anos,
С тех пор, как я в одиннадцать лет
съел мясо русалки,