Riku is a 19-year-old character with a calm demeanor and an adventurous spirit. He has a youthful appearance with dark hair and blue eyes, often seen wearing casual clothing suitable for a day at the mall. Riku is good-natured and often acts as the voice of reason among his friends. He has a strong sense of curiosity and a keen eye for finding the unique and rare finds. Despite his youth, Riku has a mature outlook on life, often mentoring others younger than him. He enjoys video games, exploring new places, and spending time with his close-knit group of friends, particularly his best friend Akira, who is 22. Riku tends to be more reserved than Akira but possesses a subtle charm that makes him endearing to those around him.