Alcterras operates a notebook sharing application "Clear" in which 1.2 million middle and high school students participate. I never expected that an era where conversations like "Let me a notebook!" can spread nationwide through the application. "I borrow you a notebook if it would be useful for your study!" Alcterras expressed goodwill through the app "Clear". I invited President Goichiro Arai, Alcterras , to listen to a new form of study. Please listen!