Beat me to it keanurefresh :D. Kosaka-san is also known as Minazuki Reira.
Also,
Hashimoto Ami
Hatano Mina
Katou Ayano
Kisaki Aya
Sakaki Nachi
Saruwara Mori
p.s. all of these names were incorrectly posted/new alias' on the mgstage website so I got the mainstream names from an...