Druid's Revenge

The protagonist is a little man who is about fifty years old. He has been bullied all his life. His father and mother were killed because the judge convicted him. His young wife left him. He has been practicing marksmanship and went to Thailand to learn Thai boxing just for revenge. But he is just a little book. Recorder, even the young and beautiful wife he married a few years ago was robbed by the little boss. Later, he accidentally obtained the Archdruid's secret method and cane from two thousand years ago... He regained his youth and started a series of revenge incidents... In the end, the great revenge was avenged... Comedy ending