Title: Noble☆Works
Original title: のーぶる☆わーくす
Length: Long (30 - 50 hours)
Year: Japan 2010-12-24, English Patch 2015-12-24
Developer: Yuzusoft
Publishers: Yuzusoft
Language: English
Voice: Japanese
Translation: Noble☆Works Translation Project Site

Description:
Takumi is a normal guy who barely gets by with part-time jobs. One day, he was asked to attend the prestigious private school Rokuroku Gakuen while impersonating a rich student that looks just like him. Although he was hesitant to accept this strange request, circumstances (mainly financial) compelled him to agree to do it. However, he knows nothing about the celeb world. Will he be able to keep his cover?

Important:
1. You have to change locale to Japanese.
http://erogedownload.com/faq/changing-to-japanese-locale-on-windows-7/

2. No need to install.

Screenshots: