I stumble upon this partially anime/manga Music Video while browsing around youtube, the MV is very interesting and funny. It is describing about two high school boys talking about love and the trouble or situation that they would face (Sorry my Japanese wasn't that good, so I am guessing from the storyline). For example, telephone calls to money problem. Its really hilarious the way he sings and it really synced well with the animation. Worth a look for everybody =)
Short bio on the Hydain
The creator real name is Kenichi Maeyamada aka Hyadain from Osaka, Japan. He makes a lot of anime/game related music remixes and a bit of his original too. You guys can check his Youtube and Niconico Douga account to have a look:
http://www.nicovideo.jp/mylist/4491340
http://www.youtube.com/user/hyadain2525/videos
http://en.wikipedia.org/wiki/Kenichi_Maeyamada
