Tamoyo is a good friend on Misaki. She's even given Miasaki the nickname of Misakichi. She is also good friends with Kotarou, and will often tackle him. She is good at many types of martial arts. Tamoyo is always at Misaki's battles cheering her on.
Kotarou is another good friend of Misaki he is Hatoko's older brother. Kotarou knows a lot about angelic layer even though he doesn't have his own angel. Kotarou develops feelings for Misaki.
Icchan is the mysterious stranger who introduced Misaki to angelic layer. He seems to be some important figure within angelic layer itself. He sometimes can come across as a pervert, and is always punishing his employees in weird ways.