SHATTERED

this world is in the year 2055 but note that after part one it's 2065

main enemy and background:

"30 years ago portals opened up all around the world humans tried to explore it but when they entered it they never came back then 1 year after the portals opened the sky became red as multiple monsters rushed out of the portal killing everyone on sight causing a globewide destruction after exactly 10 years the monsters went back inside the portals,then the portals closed,we do not know when they will open again but one thing for sure if they do we have to be prepared"

power system will be revealed later in the story

main character:
nishiki shiba 17 years old has black hair and mostly wears sweaters trained taekwando for 5 years and is a black belt personality is a timid but psychotic boy

traits:
proficient at martial arts
intelligent
strategic
strong
flexible

I forgot the explain the main defense force._. anyways the main defense force is called "asian defense force against espada" also pls note that other settlements such as Russia's survivors have their own defense force the defense force I'm explaining is Asia's
They primarily have only four ranks and it's officer, captain, lieutenant,general to be a captain you would have to kill at least or prove that you could kill 1000 espada and if you want to go up each rank you would have to add two zeros at the end so yeah the upper ranks are pretty strong

Okay to explain the subdivision their is 15 subdivision of united Asia each on one of the countries and their as big as a big city for example sub division Korea is as big as the city of Seoul south Korea so I'm guessing you already how big it is as they control and secure the entire Seoul city as the sub division also if you think that it's not that big pls note that theirs only 30% of the human population left that's why the subdivision are only as big as the city Nishiki lives near the bay of Seoul near the bridge to be exact