Under Channel: MusicThe Tower of Druaga: the Sword of URUK OP (TV)1by YoU 1584 days ago The Tower of Druaga: the Sword of URUK is my favorite anime among all those in January. The story is fun and full of unexpected events^^ The Single of OP Questions? voiced by Yu Nakamura (中村 優) will be released on January 28th. 2009. The PV has already released in December and you can check it out below.