Willem Kmetsch

Willem Kmetsch is the main male protagonist of the SukaSuka series.

Former Quasi Brave, a group of elite warriors that serve the Church of Holy Light along with the Regal Brave. He was known as the strongest of the Quasi Braves (though this was later revealed to be a joke made by his comrades).

Willem was petrified for approximately 526 years. This petrification process occurred before the seventeen beasts appeared and less than a year before humanity went extinct.

Willem is the last human, or Emnetwiht, known to be alive after the fall of the surface. This pertrification curses he suffered from have been lifted 2 years before the events in the LN/anime took place.

Likes to play with kids (after growing up at an orphanage), although some mistake it for "him being into little girls".

Some might say he is over 500 years old, but as per definition of age/-ing (process of getting older) and from the LN, he is to be recognized as 18.