The questions this time are also some of the questions that many friends are asking. In fact, these questions about the key location of the Onion Knight's cell in Dark Souls 3 are not difficult. If you really don't know the specific method, you can come to this article to see the specific strategy. I believe Everyone will know after reading it.
1. First, we teleport to the bonfire shown in the underground prison icon and walk all the way forward.
2. When you reach the end, turn right and continue forward.
3. Go to the end and jump to the bridge below.
4. After landing on the bridge, turn right and continue walking forward.
5. Enter the door on the left here.
6. After jumping down, turn directly to the back and right.
7. Go forward out of this door and turn right immediately.
8. Go to the end and jump down from the gap on the left to the path shown in the picture.
9. Then continue forward and you will enter the mouse hole.
10. Finally, go all the way to the end of the mouse hole and open the treasure box to get the key.