The love interest of Mariko Uzumaki. Originally an corporal to the Zero's Army and defected from Zero. (After being kidnap and agree to help the main character) Shu Joined the NIC after Mariko was captured by Zero. After serving 2 years and becoming an sergeant for the NIC. He decided to do a favor to a "Old man" in prison,  and help a woman that he had no idea who he rescuing at first. That woman was none other than Mariko. After reuniting with Mariko and her joining with the NIC as well. The two has been in a lot of joint missions and operations with each other. Of course the two has gotten close with each other for the last four years and became a couple. (They even had a child together. A baby boy)  Shu past is a little mystery to some, but he clearly remember his older sister (Who is "missing") and his father who died when he was young.  That what he remembers of course, but not after or before. 

Director's Note: Shu is a character who is not confident in his abilities to protect others (Don't get the wrong idea, he is very powerful) and sometimes thinks lowly of himself. But after meeting Mariko and her family. He became a lot more braver, protective and stronger because of them. He's in his mid-twenties.His voice should be in the light voice range, but when he gets serious or argues his voice should be slightly deeper.. Have fun!