In the world of Leapia, a species known as Leapians is governed by a hereditary King who rules the entire kingdom. A previous great king envisioned a dire future where breaking one of Leapia's crucial laws would lead to the rise of Drain, a Leap with unprecedented powers destined to bring chaos to the realm.
King Thorn, the current ruler, experiences a twist of fate as his son is born on the same night prophesied by the great king. The people of Leapia mistakenly believe Thorn's child to be Drain.