孤单伫立于京都寺町三条商店街的古董店“藏”。 女高中生真城葵偶然地与“藏”店主的儿子家头清贵相识，并开始在“藏”打工。 清贵虽然言行举止很温和，却具备令人恐惧的敏锐直觉，人称“福尔摩斯”。 葵和清贵一起，开始受理与客人所带来的古董有关的各种各样的委托。
The green Verdies are the tiny, but brave guardians of the lakeside. The young Verdies only become guardians when their hair turns brown. Until then, however, life is boring. The youngsters with green hair are not allowed to fly on warblers, not allowed to row alone, and they're not allowed to ride wild frogs at the rodeo. Willy Whistle's big dream is to become a guardian, but his curiosity always gets him into trouble. However, the whole lake becomes at risk when the enemies of the lakeside, the Grimps and the swans, enter into alliance. The guardians are helpless, but Willy comes up with a daring plan in order to save his home and his trapped friend, Jeremiah Jump. Luckily he is not alone, because Grandpa, the water snakes and the frogs also come to his aid.
