Daughters of a Great Alchemist

Alustin the great alchemist has two daughters: Clorince and Eileen. They are studying alchemy after their father's footsteps, making a living by selling potions made with the knowledge learned from their studies. Clorince is said to be better at alchemy. The odd thing is that Eileen gets pumped up and studies harder by looking at her sister being better than herself rather than gets depressed. Since Clorince does not plan to let her little sister surpass her performance either, the alchemical performance of the two sisters is only getting better every day.