Vadar is an S-rank ninja who is the master mind behind the war in the Special Jounin Campaign. He is the cousin of KageYudai, Ken, Aiko, and step-cousin of Anaki but he really hates Yudai. He can produce large chakra attacks and Time-Space Ninjutsu. He first appears in Stage 1-2: Unpredicted Attack of the Special Jounin Campaign as the master of Genan.
In Stage 5-1: Medical Division, it is revealed by Yudai that he is Yudai's cousin and Vadar was more talented than Yudai at everything and that Vadar's dream was to become Hokage of the Fire Village. However, Vadar was not allowed to become a Hokage since he was living in the branch family of their clan.
After the Jounin Exam when Kojima attacked the Fire Village, Vadar was learning a skill by his clan called Kinjutsu: Spirit Integration and then he left the village, seeking revenge against Yudai and the village, and plan on recreating the village as his dream village.
When Yudai encounters Vadar, Vadar told Yudai that he plans on killing Yudai, destroying the Fire Village and recreating the village, so he summoned a Bull Mask using Kinjutsu: Spirit Integration.
After the Bull Mask failed, in Stage 6-2: Kage vs Kage, Vadar and Yudai fights but were interfered by the main character and the five division captains. The main character then battles Vadar.
Kinjutsu: Spirit Integration: Vadar used this to summon the Bull Mask.