After telling Supremo when and where to do the exchange, the Dark Lord gave a signal to Alfonso to hang up the phone. He was now in a good mood. It seemed that capturing Black Shadow helped them to retrieve the stolen bio-weapons.
The Dark Lord couldn't believe that Supremo let his emotion ruin their plan. It was a bright idea to use the government's power to bring down the Dark Knight Organization.
He didn't anticipate that action coming from them but because they wanted to save their comrade, Supremo personally revealed it to the Dark Lord.
Now, the Dark Lord could plan out a countermeasure for that plan. They only had to hang on until the presidential election. Once the person from the Dark Knight would win the election then they didn't need to worry anymore about the government.
The National Election will happen three months from now. They just needed to hide their facilities away from the radar of the Skull Gang.