Super Dragon Evolution

It's terrible. I read twelve chapters; it's very filler. The protagonist is repeatedly targeted by dragonflies, and then he tries to wipe out the dragonfly clan (this plot appears three times). Every time he hears that the person who killed him only received 50,000 in compensation, he demands blood for revenge (this appears twice). The protagonist has no strategy; he just blindly insists on "wiping out your entire clan, blood for blood."

ヽ(๏~๏)ﾉ

A book that you can read to pass the time when you have nothing else to do, because it will make you so angry that you'll find something to do. The protagonist's personality is too erratic; he'll stay still if he can, and he's incredibly timid.