When they were 10, Yutaka always tailed Azusa around. Like a ninja, Azusa would hide to avoid being found by Yutaka. One day Yutaka fell down while trying to climb a tree in order to look for Azusa. She got hurt and had a scar in the shape of a crescent on her forehead. After the incident, they were parted but reunited when they were in high school. Surprisingly, Azusa returned as a full fledge ninja.
Other stories include 'Grandpa's Promise with the Monster' and 'One Bright Star'.

Ketika berumur 10 tahun, Yutaka sering mengekori Azusa. Bagaikan ninja, Azusa menyorok dan mengelak dari ditemui Yutaka. Suatu hari, Yutaka cuba mengekori Azusa yang menyorok di atas pokok namun terjatuh kerana dahan pokok itu patah. Akibatnya Yutaka luka di dahi, meninggalkan parut berupa bulan sabit. Biarpun berpisah selepas insiden tersebut, namun mereka ditakdirkan bertemu semula di sekolah tinggi. Tanpa disangka Azusa kini betul-betul menjadi seorang ninja yang hebat.
Antara kisah lain yang menarik adalah kisah 'Janji Atuk dengan Hantu' dan kisah 'Bintang Satu yang Bersinar Terang'.

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