Complex sentence: This brought him difficulties which resulted in requiring help from other staff members such as the writer Ukyo Kodachi and director Yamashita who created new scenes that left a deep impression on Kishimoto.
Split into simpler sentences: This brought him difficulties which resulted in requiring help from other staff members such as the writer Ukyo Kodachi and director Yamashita. These two staff members created new scenes that left a deep impression on Kishimoto.