Kinkirin is very high end variegated bean leaf variety. It is mutation from KIRINMARU (common bean leaf propagate very well). It is still hard to get especially the one with good variegation. Kinkirin nuke is the Kinkirin-ao which is the baby of Kinkirin but did not get variegation. If you have good variegated bean, the babies with no variegation is often remove to save energy for others or mother plants. But I’ve seen many non-variegated bean to produce variegation later on. It is said Kinkirin with no variegation does not get variegation back compared to others but it is worth trying!