Cho-Ryun

This tree spirit appears in volume two, at first he appears to Doh-hyun and Woo-hyun, looking for his friend. He is from the Princess's Garden in Heaven and has come to Earth to look for his friend (who is Ah-Hin) He looks like a girl, and so at first Doh-Hyun and Woo-Hyun think he is a 'she', but they found out that 'she' is a 'he' by when Woo-hyun told him "You can stay with us for a while, Miss Cho-Ryun" and he responds "I'm not a 'miss', but a 'mister' (a male tree with flowers), which leads to Doh-hyun and Woo-hyun's shock. He is also involved in an idea to find out who the real princess is by recognizing her with Woo-Hyun and Doh-Hyun.