What is Summon Mileage?

This is another system that will help you obtain a guaranteed S-rank hero. This is a 100-point gauge found in the top-right corner of the Summon page. Every time you summon, points are added to the gauge. Once the gauge is full, you’ll have a chance to get an S-rank hero, including immortal units. The points earned are based on the banner where you pulled, as listed below:

* Normal Summon: +1 point

* Event Summon: +1 point

* Transcendence Summon: +3 points