[vshojo] k9 kuro alias

BUR #20053 has been approved by @evazion.

create alias k9_kuro -> kuro_kurenai

k9_kuro is the more widely used name + it’s his twitter handle and twitch username. only in his debut stream did he reveal his full name.

The bulk update request #20053 (forum #254872) has been approved by @evazion.