A book on the philosophy of happiness featuring Kiki and Lala of Little Twin Stars. It introduces ways to be happy in 93 steps. - Title: Kiki & Lala's "Philosophy of Happiness" - Publisher: Asahi Shimbun Publications - Price: 600 yen + tax - Collaboration Characters: Little Twin Stars Thank you for viewing. The cover is sun-faded, but the inside has no signs of use. There are no tears, folds, or writing. Please refrain from purchasing if you are sensitive to used items.