Isekai Idol: Isekai de Idol de Byuu Shitara Seijo Atsukai Sarete Shimaimashita

Yuuka ends up being reborn in a different world on the very day she decided to make her debut as an idol. When Yuuki comes across a town where many hungry and tired people have evacuated to due to a poison mist enveloping the area, she decides to perform her song...? On top of that, Shutem - a mysterious young man she happens to meet - has a special power to be an "accompaniment singer" awaken in him...? Can an pop idol save the world?! Source: Shogakukan