Ryo

The customer tried to call a choji on the hamon. It didn't mean the artificial choji pattern by clay designing, but the natural choji as the activity.
For that challenge, the steel had to be sensitive enough. And of course, proper temperature on heating the blade toward the quenching is necessary. Such a challenge is risky for beginners, but anyway he would try it. So this time, kokaji prepared a blade made of hard steel what is sensitive as his usual work.

The clay designing was just a simple wide suguha pattern (hiro-suguha). The challenger heated the blade and quenched into the water.
He finally succeeded to call choji hamon out of the steel, however it got cracks in the hamon. He heated the blade a little bit higher than the proper temperature.

He polished the blade by himself. And the inscription on the tang also chiselled by the customer.

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