The so-called Black Tide refers to a natural phenomenon where, during the harsh times of late winter and early spring, the magical creatures of Silent Forest, driven by hunger, lose their sanity and storm Beta Town in search of food and other ways out. These magical creatures, dense like a surge of tide water, are thus called the Black Tide by wizards.
Of course, there is another explanation. Every time the Black Tide erupts, it disturbs those 'Mad Hunt' ones lost in the depths of Silent Forest. They are a group of wizards lost in the darkness due to their obsessive demon hunting, accompanied by fog and death, chasing the prey they can never catch, bursting out of the woods like a dark tide.
According to general experience, the Black Tide usually breaks out in February or March each year, and it will not be delayed past April.
Now it's early June, and this year's Black Tide has already erupted, so theoretically, a new Black Tide should not occur.