Obtained: Speak with Korin at the Sacred Land of Korin in the West Forest Area during the main story Kami’s Successor
Objective: Collect the Special Mushrooms
Travel to the Sacred Land of Korin in the West Forest Area near the base of the Korin’s Tower to locate Korin. Speak with him and agree to look for the special mushrooms. Start off by traveling to the Cell Games Arena in the Continent Center Area. Once there, make your way to the sub story marker along the eastern part of the map. Enter the cave there then speak to the beastman to trigger a cutscene. Once you gain control of Goku, head to Bulma’s lab and talk with her to trigger another cutscene. When the cutscene ends, set out to find Mr. Popo 3 High-Quality Herbs, 4 Meaty River Snails and 1 Golden Gazelle Antler. The High-Quality Herbs can be found in the West Area, Meaty River Snails can be found in the lake located in the North Mountains and the Golden Gazelle Antler can be located in either the East Ravine, Southeast Islands, Central Plains (I had the best luck here) and the Continent Center. With all of the items in tow, return to Mr. Popo to hand over the items to receive Mr. Popo’s Antidote. This will trigger a cutscene that ends with the two beastman being cured and you obtaining the Secret Shroom. When the cutscene ends, the story will complete.