According to Hidetsugo Ueno, this somewhat obscure, apple-accented cocktail is extremely popular in Japanese bars. Some people omit the club soda and call it a Moonlight.
Cocktail Tips from F&W Editors
More Classic Cocktails
Fill a cocktail shaker with ice. Add the Calvados, lemon juice and Simple Syrup and shake well. Strain into an ice-filled highball glass, then stir in the club soda.