Is Riza your answer to Cryptons Luka Megurine or UTAUs Roku Yokune?
NO! Riza is not intended to compete, BUT instead, complement Luka. Riza comprises of advanced techniques to achieve proper voice projection and (hopefully) ethnically-native pronunciation. Luka can also benefit from such techniques, after all. The same can’t be said for Ruko, since she’s on a different system.