Riki Shikishima is a fictional character from the visual novel and anime series Kagetsu Tohya. He is known for his strong personality and determination, often taking on challenges head-on. Riki is a high school student who navigates various relationships and experiences throughout the story, showcasing his growth and resilience. In the series, Riki is often accompanied by his friends, including Masato Inohara and Kengo Miyazawa, who support him in his journey. The narrative explores themes of friendship, love, and personal struggles, making Riki a relatable character for many fans of the genre.