Life Saving Herb

Kunata Don, who introduced himself as an herb hunter, said he has spent years searching for a special herb that once saved his life. He doesn't remember much about it but thinks that it looked like ordinary grass, and asked you to bring him the herb if you happen to find it.
Find the herb Kunata Don described and bring it to him.

※ You have a higher chance of obtaining herbs while gathering if you use a hoe.