Super Cub Rei summary:

A Super Cub showed her that she can become anything.The official spin-off serialization of "Super Cub" from the perspective of another main character, Reiko, has finally begun! Reiko, a young girl who yearns to be a hero, encounters an old Super Cub. The story of Reiko and the Cub spins through Tokyo, Yamanashi, Saitama, and Osaka...!