To ease all the pain and suffering in this world is no simple task, but young Kobato earnestly believes that she has the talent and ability to do just that! However, the half- human creature known as Ioryogi doubts whether the strange girl with the mysterious past is truly ready to receive the mystical flask Kobato needs to achieve her goal, a special bottle gifted with the ability to capture the pain and sorrow of a broken heart once it's been healed! However, as there's really only one way to find out if Kobato truly deserves the right to use the flask, Ioryogi decides to send Kobato on her first assignment! Will Kobato pass the test? From the magical pages of the original manga by famed creators CLAMP, the most heartwarming heroine ever is born in KOBATO - COLLECTION 1!