Shin TakarajimaShin Takarajima.

Shin Takarajima (Japanese: 新宝島, 新寳島; pronounced; lit. 'New Treasure Island') is a Japanese one-shot manga published by Ikuei Shuppan on January 30, 1947. It was written by Shichima Sakai, and illustrated by Osamu Tezuka. Following the serialization of 1946 Diary of Ma-chan, this manga is considered to be Tezuka's debut long-form work.