機動魔法少女株式会社ルルルン～魔法少女になっても俺は異世界で絶対起業する～ (Associated Names)

The world’s strongest wizard uses his magical power to start a business in his 30’s, but the source of magical power has disappeared from the world and people can no longer use magic!? Robbed of their spells, the wizards can do nothing but despair. Naturally, Keisuke’ Yokoi’s company which relied on magic went bankrupt ……