Himeko Inaba.
Why? Yeah basically almost same hairstyle (just a bit longer), computer addiction, calm, and worries about other people and herself
About Himeko Inaba: "Himeko is the vice president of the cultural club, who has a contrasting personality with Iori. She often reacts violently to Taichi or Yoshifumi's jokes, and is nicknamed "Inaban" by Iori. She was a computer club member but quit after having an argument with the president of that club, and then joined the cultural club. She is generally distrustful of others and worries a lot, even more so when they begin swapping bodies. Between them, she is the most calm and rational when dealing with unexpected situations."