At first I thought that Kaibutsu-kun is produced only for children. But it turned out as really funny comedy show with a great acting Ohno Satoshi. The story may be not as suprising as in psychological doramas but it is not uninteresting. If you have no problems with funny monsters or fantasy stories in general, you'll like it. The music is awesome, the insert song from O-chan and the theme by Arashi (Monster) are fitting perfectly. So if you have some free time and want to relax to a funny show which doesn't force you to stay concentrated every second, than laugh with Kaibutsu-kun! For Arashi fans a must watch! ^^