Greenstone Village

Having trouble finding the quest? Well, no doubt, in the Mists of the Pandaria, the quest wont show up properly on the map, even with Trivial quests enabled.
If you want to find the quest giver, Travel to Dawn's Blossom in The Jade Forest 47.4, 37.0 to find Brewmaster Tzu who will give you a quest Volatile Greenstone Brew however, you cannot queue with him to do the scenario required. You will need to travel to the Vale of Eternal Blossoms and on the top floor of Mogushan Palace talk to Lorewalker Fu.
To start the scenario click the option: "Tell me of Greenstone Village."
While you are there, also do "Tell me the tale of a Brewing Storm."
These two scenarios are two options to help you get the TOY reward, Cherry Blossom Trail
While you are there, talk to Lorewalker Cho and do all the possible scenarios he's suggesting, these will give you large boosts of EXP in the Mists of Pandaria Remix.

been a long time since i did panda quests, was wondering why no scenarios were appearing, thanks

You turn in the quest while still inside the instance.