Although the school was closed after only six years due to the outbreak of World War Ⅱ, Kobayashi's sincerity and richly creative ideas on teaching have been preserved through the high sales of Dou Dou by the Window.
雖然成立僅僅六年就因二次大戰的砲火而付之一炬，小林誠摯而富創造力的教學方法，卻透過「窗口邊的豆豆」一書的暢銷，得以保存記錄。