I Own a Magical Plant Shop

(No harem, no power fantasy, a male lead focused on personal growth and building a career, possibly even no romance.) The plant shop my grandfather left me turns out to have magical plants, as well as a beautiful, icy-cold assistant. But magic is forbidden in this world! What was Grandpa thinking, leaving me with this mess? In a world ruled by technology, what will become of the last traces of magic? There’s a money tree that grows gold coins, a giant-mouth flower that can eat a whole kilogram of pork in one sitting, and a heart-binding herb that serves as Cupid’s proxy. As I add these magical plants to my collection, how will they affect the life of the third young master of the Mu Group, and what sparks will fly?