Hikari Tsutsui finds life in the two‑dimensional world far easier. Awkward and socially awkward, he devotes himself to video games and anime, yet classmates mock him relentlessly and exclude him. Yuuto Itou, his sole companion who sports cat ears, shares this gloom and is equally absorbed by gaming.
When Tsutsui is forced to mop the pool as punishment for tardiness, he encounters Iroha Igarashi. He tries to avoid her because she is notorious; openly blunt, disliked by girls, and known for flirting with boys, Tsutsui fears trouble if they connect.
3D Kanojo: Real Girl follows these two misfits—a boy discovering emotions he never felt before and a girl determined to pull him out of his shell, and endless in the quiet corridors of their school.