The more plants there were in their space, the better. So, Luciel started practicing his abilities by making the plants grow faster and making them bloom.
Most of the plants he got from the rooftop were flowering plants, so he made them bloom.
Then afterwards he would get some of their seeds, scatter them around, and make them grow again.
He repeated such practice until he planted a lot of plants in their space.
Luciel actually doesn't need to practice that much because he has already mastered his abilities.
He just needed to practice more so that he wouldn't lose touch with it.
In his past life, he didn't grow plants that much without using them immediately, except for the plants that he was often using.
Most of the people that have abilities were combatants, except for those with a lot of privileges. So, most of the time, he used his plant abilities in combat.