Hey Dev... Is it possible to change Kiara to lv 3, and Mumei to lv 5/4. because Kiara is very rare to get. even in 1x run 10km/20km/... I might only get it less than 5x
Kiara is rare, yes. You need to plan ahead and aim for her in your run.
However, her powerup strength comes from some fusions you can get with her, which are very good for long runs.
