Summary
Nii-chan is a baby Greenman spirit and the familiar summoned by Shiemi Moriyama during a demonstration, which took place after Izumo Kamiki summoned two spirit foxes. This infant spirit forms a close bond with Shiemi, frequently perching atop her head. In combat, Nii-chan assists her by generating plant matter from its body, such as aloe, and by growing tree branches to create protective barriers. The creature displays a strong sense of protectiveness, notably shielding Shiemi from falling debris during a mission in an amusement park. Due to its young age, it does not perceive Shiemi or other humans as threats. It communicates exclusively by uttering the phrase "Nii!"
