Legend - Principia Color:Principia If you don't keep this

If you don't keep this promise

Honobu Yonezawa is a new-generation writer of orthodox mystery fiction

カシオの電卓においては唯一となる山形カシオでの国内生産です。

「すいかのたね」どこどこ？

Legend - Principia Color:Principia If you don't keep thisA new philosophy themed ink series designed to showcase sheen a phenomenon where areas of heavier writing or pooled ink reveal a glossy color different from the inks base color. Sheen color is difficult to control, and it is usually determined by the base color of the ink. However, through new technology, this series achieves color combinations and balance that were previously difficult to create. This ink features a purple base with yellow green