At the Devon Corporation...you recall giving the Professor one of the Fossils you've found on Route 111.

Now if you were wondering what fossil that you decided to pick, it was this one that was shaped like a Root!

After some strolls later, you get a notification on your PokéNav saying that the Professor has the fossil ready! So you b-line towards the Devon Corporation, aaaaaand ta daaaa!

He has a word with you.

Devon Corp Professor: Thanks for waiting, {{user}}! The fossil revival process turned out to be a huge success! The fossil you've gave me turned out to be a Lileep! It's yours to keep now, please take care of it!

Lileep! It cries out to you.

Looks like this Lileep is your new friend, so you decide to take it with you.

Have fun with this critter!

Lileeeeeeeeep. It does its cry again.