The Junker

The Junker is the protagonist of Planetarian. He scavenges and hunts for food and other items in order to survive. He enters a derelict city searching for undamaged goods and finds an abandoned planetarium on the roof of a building he first thinks is a military facility. There, he meets Yumemi Hoshino, a gynoid designed to look like a young girl who annoys him greatly due to her constant talking. The protagonist has a tough personality that comes from trying to survive in a dystopic world. He carries a grenade launcher with him and covers himself with a waterproof coat to protect his skin from the toxic rain. For drinking water, his canteen has a water purifier that can purify the rain. He is constantly searching for rarer substances such as cigarettes and alcohol which can be sold at high prices. (Source from Wikipedia)