Cloche was a visual kei band. They were active in 2008 and are now disbanded.
I believe Naotsu from Shingeki no Awake (進撃のあわけ) wasn't part of Cloche at all, the guy from the pictures doesn't look even slightly with him, I'm pretty sure it's Rei (黎) instead, and Naotsu just met the members from Cloche when being part of S.C.RM