Hello there, i`ll teach you how to put Harmony Options (Y.O).
How to put Harmony Option:
Drag the "Jewel of Harmony" and drop to your selected weapon or armor.
How to make a Harmony:
1. Buy "Gemstone" at Lorencia Bar.
Note: Buy as many as you can.
2. Go to Kanturu 3.
Note: Down>Right>Up>Right>Gate
3. Click the gate. Click Enter to enter refinery tower.
4. Go Straight. Click the NPC named "Elpis"
5. Put the Gemstone and Refine it to jewel of harmony.
How to remove Harmony Option:
1. Warp to Aida 1
2. Click the green goblin
3. Put the armor/weapon with Harmony Option to remove.
Note: You can`t remove Harmony Option of Multiple Armor/Weapon at once.
How to enchance Harmony Option:
1. Buy Low/High refining stone at lorencia bar.
Note: I recommend High refining stone
2. Drag and drop the refining stone to a armor/weapon with Harmony Option to enhance it.
I hope it helps you
Arigatou gozaimasu