The heroine Umi is a girl who works part-time at "Cubic Cafe". One day she watched a concert of a band called "Your" and was overwhelmed by its sound. Some time later, a band member
The playing system seems to be like a visual novel. Although there are games with better character designs, I find the idea of playing in a band very interesting~ and guys are always SO HOT while playing! (>////<)
The band
Characters
TSUKIOKA Umi, the heroine
VA: KAORI
SASA Shun'ichi, guitar player
VA: Midorikawa Hikaru (緑川光)
ICHII Kiyotaka, bass player
VA: Okiayu Ryoutarou (置鮎龍太郎)
HANE Hidemi, drums player
VA: Suzumura Kenichi (鈴村健一)
KAWAMOTO Taku, guitar player
VA: Yoshino Hiroyuki (吉野裕行)
HONJOU Masato
VA: Toriumi Kousuke (鳥海 浩輔)
Ku-ta
VA: Konishi Katsuyuki (小西克幸)
There are other characters, but I'll add them later
The main site is here, and there's a promo video here. On the site there's also an "interview" with each character.

Manufacturer: Cyberfront
Release date: January 31, 2008
Rating: Cero B
Please forgive my for the inaccuracies, my Japanese STILL sucks.