Age: 32 Height: 5' 9" Weight: 176 lbs. Nationality: People's Republic of Da Han Zhong (DHZ) Occupation: Lieutenant of DHZ Intelligence Specialities: Rifle
A mysterious agent working for the DHZ, Liu is the first product of the secret Real Numbers project headed by Bal Gorbovsky. He also came to Japan after hearing about the accident at JDF Yokosuka Base. Fiercely loyal to Bal, who is also Ravnui's ambassador to the DHZ, he seems to have a hidden agenda. He is an enemy character in Emma's story but a playable one in Alisa's scenario, and helps Kazuki, Ryogo and Alisa to escape from Japan.