Naruto enters the mist to seek out Yukimaru. Guren stays alert to protect Yukimaru, whose current situation prevents him from moving. When both sides meet, their emotion over Yukimaru sparks.
That means they have a Jutsu
فهذا يعني أنّهم يمتلكون تقنيّة
Eso quiere decir que tienen un jutsu
eso quiere decir que tienen una técnica