In 'It's a Little Late, but I've Fallen in Love With My Childhood Friend,' Hikari, a regular high school girl, discovers her childhood friend's charm, leading to romantic yet tense moments in their everyday interactions. Burdened with newfound love, Hikari faces the challenge of confessing her feelings. This Japanese web novel explores themes of comedy, drama, Josei, romance, and slice of life, weaving a story around childhood love, cute protagonists, and modern-day relationships, promising a tale filled with love triangles and heartwarming moments.