User blog comment:TanatatTigerTruth/THE CHACATER SONG/@comment-4703969-20120127001637

Hikaru ruins Houkago Chemistry >_> Kariya has such a good voice too...

As for Endou, his older voice reminds me way too much of Naruto (same seiyuu, but original Endou had a higher voice), I just imagine Naruto there singing it lol...