Those who had ill intentions were obviously those who used various means to jar the interests of the Tower of Dusk during these six months. They were initially rather skeptical about the news of the return of the President of the Tower of Dusk, but when they saw the big shots visiting the Tower of Dusk, they began to panic.
At the beginning, they had the audacity to harm the businesses of the Tower of Dusk because they knew that the Dark Blade was determined to destroy the Tower of Dusk. Regardless of how well the Tower of Dusk developed, they would never be able to compare to the Dark Blade which had hundreds of years of solid foundation. Hence, it would be no surprise for the Tower of Dusk to be defeated.