3D Kanojo: Real Girl follows Tsutsui, an introverted high school otaku who feels more at ease with anime and games than with the people around him. His carefully closed-off routine changes when Iroha, a popular classmate with a blunt personality and unpredictable behavior, pulls him into a relationship that neither of them seems fully prepared for. What begins as an awkward clash of personalities slowly becomes a test of whether Tsutsui can stop hiding behind fantasy and face real emotions.
As the two navigate school life, the series leans into misunderstandings, nervous confessions, and the embarrassing honesty that comes with trying to understand another person. Their friends also become part of the picture, dealing with crushes, rejection, and the messy process of growing up, which gives the story both humor and emotional weight. Balancing romantic comedy with quieter dramatic turns, 3D Kanojo: Real Girl explores the gap between idealized romance and genuine human connection, and the difficult but rewarding steps required to bridge it.