It's a story about this girl who had already graduated high school and has germaphobia and the first scene was her taking a wipe walking down her house staircase and disposing it at the end while talking to her step brother which is in high school. Then she goes visit her friend and stumble across an old school uniform, she decides to wear it and goes to a shopping district, later bumping into his step brother, lying that she was another person and they started dating. Slowly learning about his brother, she falls in love in the end. Please help me find this story it's not really popular and many person hate this girl character but please give me some closure Thanks

It's Liar x Liar.

Thank you