The Breath of the Underworld in "The First Berserker: Kazan" is a very special material in the game. If you want to obtain Breath of the Underworld, you need to go to different places to collect it. The most important thing is that the last Breath of the Underworld requires the side mission vow to be obtained.
Where to get the First Berserker Kazan Breath of the Underworld
The last Breath of the Underworld requires the side mission vow to be obtained
Three disc fragments need to be found in the front
Perus Center Valsal closed vampire closed—Varsal Disc Fragments
Aldebil-Aldebil Castle, the city of the lake - the disc fragments of Aldebil
The Royal Theatre Rollerian's Road to the Museum—Ron Lean's Disc Fragments
is also an important task prop for unlocking the real ending.
