Dandelion is a location in Ys IX: Monstrum Nox. It is the base of operation and hideout of the Monstrums and functions similar to Castaway Village in Ys VIII: Lacrimosa of Dana. Many actions can be done here including shopping, receiving side quests, exchange for materials, cooking, revisit a raid, etc. It is the default warp location in the game.
It was a bar before Adol's visit. But it went out of business in 23 AC, and has been abandoned ever since. When Adol escaped from Balduq Prison as Crimson King, he hides in the basement of the bar. Later Dogi regrouped with him and reopens the bar as a hideout for Monstrums with the help of Carla Pendleton.