Chapter 175: The Chaos Dragon vs. The Human Emperor
Celes and Louise lied to Leon, telling him they would assist Heaven Library Guild in their preparations to protect their lands and overall alliance. They even stressed that they wouldn't leave Madevin Metropolis. That was so Leon wouldn't be worried about them.
Of course, in reality, these two were ready to go with other forces to fight against The Human Emperor. Their intel said that The Chaos Dragon had already descended onto The Human Emperor's forces.
Louise and Celes had a simple goal — save Celes' sworn sisters.
The rest was up to powerful existences.
Thus, these two left with that simple goal in mind.
On the other hand, Leon spent a few days working on his business and tending to Athena's wounds. He believed that his other beloveds wouldn't hate him for sacrificing all his attention to Athena. And his time in the smithy was his usual escape from reality, which Louise and Celes should be well aware of as of now.