The Alchemist Who Survived Now Dreams of a Quiet City Life, Vol. 3 (light novel‪)‬

There is no going back-only moving forward
The Labyrinth's subjugation is close at hand, and the city's chemists are more knowledgeable than ever before. All of this could be credited to the efforts of a certain alchemist, puttering around in her little atelier. As Mariela works her magic on the city, those around her begin to confront change: Sieg is honing his combat skills to become an A¯Rank adventurer, while Lynx is starting to come to terms with his feelings for Mariela. And even though no one promised that these carefree days would last forever, Mariela has never once thought to question it, basking in the warmth of her favorite people at Sunlight's Canopy...