Rai Kiriyama is the main protagonist of the anime and manga series 'March Comes in Like a Lion' (3月のライオン, Sangatsu no Lion). Rai is a professional shogi player who struggles with loneliness, depression, and the trauma of his past. Despite his quiet and reserved nature, he forms meaningful relationships with the Kawamoto sisters and other shogi players. Throughout the series, Rai's journey is one of self-discovery, emotional healing, and finding a place where he belongs, making him a deeply relatable and multi-dimensional character.