We Never Learn #17

This volume collects the final chapters of Taishi Tsutsui's romantic comedy manga, wrapping up the story of Nariyuki Yuiga and his tutoring of five genius girls with unique talents. The title references a mermaid-themed event that ties into the series' conclusion, as the characters navigate their futures and relationships. It includes the epilogue chapters that resolve each heroine's arc, staying true to the harem genre's tradition of multiple endings.