Ghostwire: Tokyo

Post-STU method:

ToMiSlav (from the comments of this guide) states that you can throw an Updraft Talisman on your feet and simply stand in it until it expires, more than 10 seconds should pass before you hit the ground. Updraft Talismans unlock in Chapter 2 by buying some from vendors. No need to obtain any upgrades if you want the achievement sooner and with less effort. However, the original method is also available below.


Pre-STU method:
Firstly, you want to unlock the relevant skills to make this work much easier.

— Amenokagami I
— Amenokagami II
- Bypass the skill lock with Matagami tokens
— Amenokagami III

This will fully upgrade your glide so you can glide for 5 seconds before dropping down.

After this. You are set to get this fast. Find any open area with a Tengu in the area. Launch yourself off a roof and glide for as long as you can, as you reach the 5th second, grab a tengu and immediately try to trigger your second glide for the next 5 seconds. You can then wait it out and land, you will then unlock the achievement.

Any tengu location should be good enough, but the gliding can be finicky if you’re too close to touching the ground. This should only take you one or two tries at best.

Post-STU method:

ToMiSlav (from the comments of this guide) states that you can throw an Updraft Talisman on your feet and simply stand in it until it expires, more than 10 seconds should pass before you hit the ground. Updraft Talismans unlock in Chapter 2 by buying some from vendors. No need to obtain any upgrades if you want the achievement sooner and with less effort. However, the original method is also available below.


Pre-STU method:
Firstly, you want to unlock the relevant skills to make this work much easier.

— Amenokagami I
— Amenokagami II
- Bypass the skill lock with Matagami tokens
— Amenokagami III

This will fully upgrade your glide so you can glide for 5 seconds before dropping down.

After this. You are set to get this fast. Find any open area with a Tengu in the area. Launch yourself off a roof and glide for as long as you can, as you reach the 5th second, grab a tengu and immediately try to trigger your second glide for the next 5 seconds. You can then wait it out and land, you will then unlock the achievement.

Any tengu location should be good enough, but the gliding can be finicky if you’re too close to touching the ground. This should only take you one or two tries at best.

when you at a high place, just jump and hold RB for 10 seconds ,you will fall slowly.it also works

1. I recommend fully upgrade your glide skill: Amenokagami. After you can glide for 5 seconds before dropping down.
2. Find any open area and glide during 5 seconds.
3. Grab a Tengu and try to trigger your second glide.

Don't forget about free fall. It's time count too.

Also added a video where I got achievement and location too.

There are quite a few ways to unlock this achievement, aside from just using an Updraft Talisman and staying in the area you drop it at for 10 seconds. If you'd rather prefer unlocking this achievement in a far less cheesy way, here's what I did to get the achievement:

I unlocked all three tiers of the Amenokagami glide and both tiers of the Amenotori Tengu grapple skills. You need a combined 9 magatama pieces to unlock access to gain the final tiers of both skills. I also needed one Updraft Talisman to get up to the very top of the Kagerie Retail Building near the Kuo Shrine. I think it's possible to get the 10 second airtime from the mid-height portion of the building, but I couldn't be sure. Just note when you get to the very top there's a Blue Stone you can pick up. It's not a Relic item but they could be useful from an easter egg-centric collectible perspective. That said, when you get to the very top, grapple up to the top of the glass shelter that line up to the eastern end of the building, walk to the southeast corner as shown in the map, then jump off and use out all five seconds of your glide while still moving southeastward to ensure you don't land on the above street walkway, though that's unlikely have bearing whether or not you get the 10 seconds, but it ensures the maximum airtime.

1. I recommend fully upgrade your glide skill: Amenokagami. After you can glide for 5 seconds before dropping down.
2. Find any open area and glide during 5 seconds.
3. Grab a Tengu and try to trigger your second glide.

Don't forget about free fall. It's time count too.

Also added a video where I got achievement and location too.