Know what the important units are these units mostly were from
- Rare Summon Gate
- Honor Summon Gate
- From Quest or Vortex Maps
- From Trials
- Evolution Materials such as Totems, Mimics, Pots, etc and etc.
- Sphere Frogs / Burst Frogs
By clicking the Favorite button on the unit will save your unit from being accidentally sold or fuse. Putting it on your Favorite will remove it from the list of units when fusing or selling units.
1. Go to Units > View Units and click Add Favorite.
2. There will be a confirmation if you have managed to successfully add it to your favorites.