Beautiful sisters Ai, Mai, and Mii, their android maid Mea, and their slippery pet ferret Unagi embark on a remarkable journey through time and space, never leaving their cherished mansion behind. Guided by the clues of the peculiar dandelion-like "Popotan," the girls are ostensibly searching for the individual who holds the answers to their most intimate questions. However, they appear to have ample time for detours, making new friends, visiting hot springs, and occasionally running the Christmas shop they maintain within the house along the way. Nevertheless, the girls' ultimate destiny contains more than a few surprises, and not every moment is filled with hilarity, as traveling through time necessitates leaving friends behind as well.