Do not worry, you can always laugh.b The Most Loved Mentor in Japan b b The best-selling mentor in Japan and the greatest gift from Sasuke Watanabe! It was the last book left by Sister Watanabe Kazuko. In this book, which saw his handwriting correction ten days before leaving the world, the author quietly talks about his experiences in teaching his students, his memory of gifts and motherhood, and the encounter with Sister Mother Teresa. In particular, this book contains the secret of a smile and a positive life for an author who once suffered from depression and suffered mental suffering. When the weight of life is heavy and the front is invisible, praying hard, when the work is not done as desired, when the mind is exhausted, the message of the author will be warm encouragement and comfort.