In the original game, Shinji has a habit of just barging into Miki's house uninvited, although his intentions are benevolent. In the remake, he always has a valid reason to come over and only breaks into her house once (when Miki is trapped down the well in the remake, he had been coming over to ask her out to dinner and hears her calling for help; the only time he comes in without permission is in the ending, as he was concerned for Miki's mental state and/or was supposed to be taking her to hospital, depending on the choice the player made). Word of God explains that she decided to give Shinji more characterization, after realizing most players misinterpreted his concern for Miki in a more sinister light (when he simply has a crush on her).