Her traditional views create tension between her and her older sister Yumi and her boyfriend Rentaro. She is very upset when she hears anything about her dead mother, Kasumi. She is a very shy, polite, and delicate person, unlike her sister Yumi. She is devoted to the Ryokan and her family heritage, although, being the youngest daughter in the Shimizu family, she is not going to inherit the inn.

Miwako Shimizu (Mikano Fukaya) – Miwako is the receptionist at the Ryokan Hiei.

She is the only playable character in the game, which means the player must solve the mystery from her perspective.

Nancy Drew ( Lani Minella) – Nancy is an 18-year-old amateur detective from the fictional town of River Heights in the United States.

Unable to resist a mystery, Nancy works to discover who, or what is haunting the inn. One by one, the guests leave the Ryokan Hiei until Nancy is left only with the secretive family that owns the inn.

Strange events, supposedly caused by a woman who died there mysteriously, are scaring away guests. Once she arrives at her Ryokan, however, she discovers that not all is as it seems. Nancy Drew travels as an English teacher to Kyoto, Japan with friends Bess Marvin and George Fayne as a reward for solving the preceding mystery ( Nancy Drew: Trail of the Twister). The game is loosely based on two books, Tour of Danger (1992) and The Thirteenth Pearl (1979). There are two levels of gameplay, Junior and Senior detective modes, each offering a different difficulty level of puzzles and hints, however neither of these changes affect the actual plot of the game.

Players take on the first-person view of fictional amateur sleuth Nancy Drew and must solve the mystery through interrogation of suspects, solving puzzles, and discovering clues.

It has an ESRB rating of E10+ for moments of mild violence and disturbing imagery. The game is available for play on Microsoft Windows and Mac OS X platforms. Shadow at the Water's Edge is the 23rd installment in the Nancy Drew point-and-click adventure game series by Her Interactive.

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