In fact, Marvin never had any intention of letting the first Divine Servant of the Dream God go after finding signs of her presence.
His attitude towards Gods was clear-cut. This might be due to his previous life's experience, or maybe the dissatisfaction toward their attack on the Universe Magic Pool. Either way it was very unlikely for him to cooperate with the Gods in the near future.
Moreover, the Comprehension points provided by Divine servants were something Marvin was in dire need of.
Although he had already become a Legend and was considered a hero that could move unimpeded throughout Feinan with the power of the Ruler of the Night, it still wasn't enough in front of true Gods.
Thus, he still needed to quickly get stronger.
Hunting Divine Servants was a shortcut!
Thus, when he got close enough to Ambella, he unhesitantly launched an attack!
His daggers moved like lightning as they ruthlessly beheaded Ambella.