Umiharu

After being ravaged by war, Tougoku is now consumed by the endemic threat of UDL, a powerful and heavily addicting drug. Ibuki, a survivor living in the dregs of Tougoku's society, sells UDL in order to fund the search for his lost mother. But then, he meets a mysterious girl named Milfie, who soon turns his search efforts upside down.

Kenichi, a single man in his 40s, is transported into another world for no apparent reason. As he tries to escape a dangerous forest teaming with monsters, he realizes he has the power to access to a huge online store. By using this power to exchange goods he found in this new world for cash, and then buying modern ones off the internet, he was able to quickly create a very popular business. However, his goal is to have a slow and leisurely life.

Airi is an average 12-year-old girl. She goes to school, hangs out with her friends, and loves being outdoors. The thing is, she can only be outside for 30 minutes a day. Welcome to Airi's life. A catastrophic nuclear war reduced the world to a radioactive wasteland and forced her and other humans to live deep underground. But, this doesn't bring Airi or her friends down. As they explore above ground, they make shocking discoveries not taught in school. Manga Planet has the first two chapters for free on the official website. It also has the latest chapter up for free for two weeks.