My Girl is a manga by Sahara Mizu about a single father named Masamune who unexpectedly becomes the guardian of his five-year-old daughter, Koharu, after the death of her mother. The story follows their quiet, everyday life as they learn to live together, build a bond, and heal from their loss. Readers enjoy it for its tender, realistic portrayal of parenthood, gentle humor, and emotional depth, focusing on small, meaningful moments rather than dramatic plot twists.