Dragonsword: Awakening - How to get Reina's "I'll Stand In The Sky" achievement

Reina's achievement "I'll Stand In The Sky" is described as "Attack an airborne monster for 30 seconds as Reina".

It definitely sounds like you and the target need to be in the air for 30 seconds of attacking but this is extremely hard to do since even if you can manage this, a Break on the target generally means they will fall and possibly die from the fall.

What I found was:

• Reina did NOT need to be constantly hitting anything for 30 seconds. She just needs to be in combat and stay airborne for 30 seconds.
• Based on some player reports, the target also doesn't need to be airborne (but it's harder to keep Reina airborne if she starts with a target low on the ground).

Here's how I did it easily and what I observed:

• Unlock Reina's Master Skill for Air Dash
• Target: Sudden Mission boss Aela, the Wings of Collapse.
• It may not be absolutely necessary to attack an airborne target but this location and the nature of the boss to stay airborne can help with Reina staying airborne.
• Go up the slopes because that boss likes to stay in the air and is actually quite hard to drop onto the ground as it recovers Break very quickly.
• Attack the boss when it gets close.
• Stay airborne for 30 seconds.
• The high slopes help you get up and give you a lot of distance to fall slowly.
• Do not try to keep attacking Aela.
• Use normal attack - normal attack - Air Dash - normal attack to keep airborne.
• The third attack in your normal attack combo/chain is a plunge, so don't do that.
• The normal attack following an Air Dash is not counted toward your regular normal attack combo.
• To recover height, use one of your skills when the boss is above you. That will zoom you up to the boss because skills try to move you to connect to the target.

It can be helpful to equip gear with defensive main stats like Max HP Up or Defense Up.

So the achievement looks like it will trigger if you remain in combat with an enemy and you both survive for 30+ seconds and the enemy stays airborne (not the ailment, just in the air).

CAVEAT: These are just my observations on my attempt where the achievement triggered. I'm not entirely sure on what the actual factors are.

Good luck!