The video above is the The Witcher 3 Wild Hunt Lilac and Gooseberries Main Quest Walkthrough and shows how to complete Lilac and Gooseberries, the quest featured in The Witcher III: Wild Hunt.
The video walkthrough covers the following objectives:
Kill the ghouls.
Go to the tavern in White Orchard.
Ask travelers about Yennefer.
Complete the griffin contract.
Prepare to leave White Orchard with Vesemir.