I wonder what kind of weapons you got from Gacha?
Meryl will introduce you to the following about the upgrade of weapons.
How to upgrade Weapons
There are 2 different tabs on the enhancement page for weapons.
Tab 1: Upgrade Weapon
Tab 2: Awaken Weapon
The materials as shown on the picture are used to enhance a weapon.
Every 10 levels of a weapon, you will need to breakthrough that weapon in order to continuing the enhancement.
The materials as shown on the picture are used to breakthrough a weapon.
Note: that the materials can change depending on the element of the weapon.
The second tab is where you awaken your weapon. Max 6 stars.
Every Awaken attempt will give you a new passivethat unlocks for that weapon.
You can awaken any weapon with the materials as shownon the picture left.
These materials are obtainable if you achieve a duplicate of that same weapon/corresponding Mimic.
Add hthgaming.com as a preferred source on Google