Hello,
i'm a big fan of Yuka Kitamura and I'd recognize his style anywhere.
And this is SURELY the musicof the ost who has been composed by Asakura:
10 - Sculptor of the Dilapidated Temple
29 - Children of Rejuvenation
32 - Apparitions
38 - Great Shinobi
47 - Conspiracy
Good day to you!