Magical Girl Raising Project

Magical Girl Raising Project (魔法少女育成計画 Mahō Shōjo Ikusei Keikaku?) is a Japanese light novel series written by Asari Endō and illustrated by Maruino. Takarajimasha has published nine volumes since 2012 under their Kono Light Novel ga Sugoi! Bunko imprint. A manga adaptation with art by Pochi Edoya was serialized in Kadokawa Shoten's Comp Ace magazine between September 2014 and October 2015. An anime television series adaptation by Lerche began airing in Japan from October 2016.

Plot
A popular social game known as the Magical Girl Raising Project has the ability to grant players a 1 in 10,000 chance to become a real life magical girl. Each of the magical girls possess unique abilities and earn Magical Candies by protecting people and performing good deeds. However, at some point, the administration has decided that sixteen magical girls in a certain city is too many, announcing they will cut down the number in half by having the magical girl with the fewest Magical Candies each week lose their powers. However, the girls soon discover whoever loses their powers will die, and as the rules of the game become more twisted, the girls find themselves dragged into a life or death battle of survival against each other.

Official
Official anime website

Other Sources
Wikipedia