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Ryuji Maruyama Alien Force
Vital statistics
Real name Ryuji Maruyama
Age 18
Species Human
Designation Mission Giver
Series Ben 10
Location Camp Kidney
Nano Item Necklace
Voiced by Dante Basco

Ryuji Maruyama is a rival of Shiori Sakurai.

Character History



  • He used to be friends with Shiori.

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