Yuuri Katsuki is the main character in the anime series Yuri on Ice. He is a Japanese figure skater who struggles with self-doubt and pressure to succeed. After a disappointing performance at the Grand Prix Final, he returns home to reflect on his career and passion for skating. His life changes when his idol, Victor Nikiforov, a famous Russian skater, becomes his coach. Together, they work on improving Yuuri's skills and confidence. The series explores themes of competition, personal growth, and the relationship between Yuuri and Victor as they navigate the world of figure skating.