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Treatment on the Island is a World Quest in Genshin Impact. Learn how to unlock this Quest and where it is found, as well as its rewards and a full walkthrough for completing the Quest.
List of Contents
| Quest Type | World Quest |
|---|---|
| Location | Yashiori Island, Inazuma |
| Quest Giver | Yasumoto |
If you happen to have the herbs Yasumoto needs on hand, just give them to him on the spot.
| Objectives | |
|---|---|
| 1 |  Talk to Yasumoto in Musoujin Gorge to begin the quest. |
| 2 | Need:
 Naku Weed
x12You need to gather 12 Naku Weed and give it to Yasumoto. If you already have enough Naku Weed, you can give it to him already. |
| 3 | After giving the herbs, meet him at 18:00-24:00 the next day and talk to him. |
| 4 |  Enemies will try and attack Yasumoto. Defeat them and talk to Yasumoto again to end the quest. |
| Rewards | ||
|---|---|---|
 Adventure EXP
×250 |
 Primogem
×30 |
 Hero's Wit
×3 |
 Mora
×30000 |
||
Naku Weed is an Inazuman Local Specialty, and you should be able to find them in great numbers around the Mikage Forge area on Tatarasuna Island in Kannazuka.
Naku Weed can be acquired by exploring the Inazuma region. You can also plant it in your Serenitea Pot and farm seeds.
Gardening Guide | How to Plant Seeds
 Nobushi: Kikouban
|
 Nobushi: Jintouban
|
 Nobushi: Hitsukeban
|
 Kairagi: Dancing Thunder
|
 Kairagi: Fiery Might
|
Near the end of the quest, you have to defend Yasumoto from a number of Nobushi and Kairagi enemies. Stay away from the cliff side and bring shields, then lure them in and attack with close-range characters!
| Achievement | Rank | Primogem Reward |
 A Doctor's Odyssey
|
★ | 5 Primogems |
|---|---|---|---|
| Objective : Find out what happened to Yasumoto. | |||
After completing the world quest, you can continue putting Naku Weed inside Yasumoto's basket for a few real-time days to get a chest and an achievement after you do it a few times. Check out our full achievement guide for a full walkthrough on how to get this secret achievement.
A Doctor's Odyssey Achievement Guide
Treatment on the Island World Quest Walkthrough and Rewards
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I do not have A Doctor's Odyssey achievement so I know I haven't completed this quest. However, Yasumoto is not there. I can see exactly where he's supposed to be but it is empty. Does anyone have a solution for this?