Angel looked at the boiler-shaped illusion painting, and a suspicion arose in his heart.
"This seems to be... Witch's Soup?"
The boiler image was ordinary, but a boiler emitting pale pink smoke basically only referred to one thing in the Wizards' Realm: Witch's Soup.
This is not to say it's a rule, but it is a concept formed by common practice.
This concept comes from a witch named Windsor, who was a very famous master in Potionology, having invented countless Witch's Soups that are still renowned till now. Back then, Windsor Witch's most frequent emblem was a boiler emitting pink smoke.
At that time, there was already a common understanding in the Wizards' Realm: a boiler with pink smoke represented Witch's Soup.
And with Windsor Witch's passing, this tradition hasn't disappeared and continues to circulate in the Wizards' Realm, even today, if you see a boiler emitting pink smoke, it's definitely Witch's Soup.
