The attending physician of Sunshine Pediatric Ward Room 101. He is 34 years old and usually gentle, but he scolds strictly when someone does something wrong. Male.

The eldest in Room 101. He is calm and timid, but becomes lively once he gets close to others. A 14-year-old boy. Stomach cancer.

Lively and mischievous, he often causes a ruckus and gets into accidents. 8-year-old boy. Type 1 diabetes.

Usually smiles a lot, kind, and playful, but she is truly terrifying when she gets angry. 11-year-old girl. Leukemia.