5TEARS appeared at C81, and the songs appeared online.
Go here to listen to the song.
Here are the full credits to JUPITER:
Lyrics: Shimamiya Eiko
Compoisition: Holst & Shimamiya Eiko (I have no idea who Holst is)
Arrangement: Furushima Tomohisa
The song begins right away with KOTOKO singing. Her vocals here sound a bit different than usual, like not similar to some songs from Hiraku Uchuu Pocket. It’s not bad though, it’s really good. She does great throughout the whole song, even with the high notes. The music is really good too. In all, a great song.
After a while, the theme song (and its credits) for Material Brave have been revealed.
Unite + reactioN
Lyrics & Vocals: KOTOKO
Composition & Arrangement: Kikuta Daisuke (Elements Garden)
Elements Garden has worked with a lot of eroge singers (and singers who haven’t done any eroge songs). Daisuke has worked on songs for the following singers: Chihara Minori, ELISA, Kuribayashi Minami, HIMEKA, Katakiri Rekka, and Sakakibara Yui.
Some info for 5TEARS has come up now.
1. JUPITER ~2012~ K-Style
Vocals: KOTOKO
Arrangement: Furushima Tomohisa
2. Nichijou
Vocals: Tae
Arrangement: Furushima Tomohisa
3. Mermaid blues
Vocals: Tae
Arrangement: Nakatsubo Atsuhiko
4. Itekurete Arigatou
Vocals: Shimamiya Eiko
Arrangement: Iuchi Maiko
5. ROBIN
Vocals: Shimamiya Eiko
Arrangement: Yamauchi Kensuke
6. Fairy land
Vocals: Tsubaki Kaori
Arrangement: Yamauchi Kensuke
7. Carnation
Vocals: karuta
Arrangement: Nakatsubo Atsuhiko
I wonder if JUPITER is actually a cover of Hirahara Ayaka’s song. This title has “~2012~” and “K Style” (<- though that probably doesn't mean much) in it. Find out when the mini album comes out. 
