Title: Maji de Watashi ni Koishinasai!
Original title: 真剣で私に恋しなさい！
Length: Very long (> 50 hours)
Year: Japan 2009-08-28, English Patch 2015-03-10
Developer: Minato Soft
Language: English
Voice: Japanese
Related Anime: AniDB
Translation: Yandere Translations & Maji Translations
Uncensored

Description:
Kawakami City is famous for its strong dedication to its samurai ancestors. A strong fighting spirit is always valued and it's even an important factor in succeeding in school there.

Yamato, a second year student from Kawakami Highchool is always with his close friends (4 boys and 3 girls). They have known each other since they were young and have done loads of things together. They have many other friends, but this seven people is a close-knit group, they even have a secret base where they meet...

With the new semester, they welcome two girls into their group and shortly after things start to change...

Important:
1. No need to install prepatched version.

2. You need to change locale to Japanese, otherwise the game will not start.
http://erogedownload.com/faq/changing-to-japanese-locale-on-windows-7/

Screenshots: