Zen is a gardener who took residence at Qlon Temple. He is highly skilled in growing flowers, and wishes to fill the world with more flowers. He joined the Gate Rune Wars in order to make his dreams come true, and for that reason, the old Toran Liberation Army Headquarters is filled with flowers to this day. - Blue Moon
How to Recruit: Speak to him behind Qlon Temple with the Red, Blue, and Yellow Flower Seeds in your inventory. He won't ask if your Castle isn't at least Level 3.