The Best Ruler, a single ruler that combines the functions of a protractor, compass, and more. A collaboration product with "Too Many Losing Heroines!" A video on how to use it is available; please search using the code on the back of the product. Characters: Takibi Amemori Imigi Muru GAGAGA Bunko Kazuhiko Onmizu Anna Yanami Lemon Yakishio Chika Komari Yoshiki Onmizu Riko Shiratama Amaihoshi Mazori Hibari Hokohara Yumeko Shikinya Toyohashi Too Many Losing Heroines