Basil is a central character in the RPG game OMORI. He is a gentle and sensitive boy who has a deep love for flowers and photography, often seen carrying a photo album that documents cherished memories with his friends. Basil plays a pivotal role in the story as his disappearance triggers the protagonist's journey through a surreal dream world. His presence is crucial in unraveling the mysteries surrounding the characters' pasts and the underlying emotional themes of friendship, loss, and reconciliation.