[Knowledge] Heartless Giant

Quest Text An unusually large cage.
They say there's a story behind it...

Summary Inside a giant iron cage, it is said that a powerful giant,
who was once bad and then good, was trapped.
It is said that his mood changed 1440 times a day,
and no one could predict whether it would be good or bad.
When he was in a bad mood, he would destroy everything in sight and plunder,
and when he was in a good mood, he would immediately regret and try to make up for all his actions.
The problem is that no one has seen this giant, but according to rumors,
whenever the giant's mood turned bad, he would seek out anyone
who remembered him and take their lives.

However, there is a legend that the giant,
who had lost his mind and was barely trapped there,
escaped from the unknown iron cage and still roams around.