Noin is Zechs ex-classmate and also his best friend.She was an OZ officer before becoming Princess Relena's bodyguard at Cinq Kingdom.After the fall of the Cinq kingdom, she went to space and gathered the 5 Gundam pilots to protect the colonial stars from OZ.Later,she became a founding member of the Preventer,known as agent "Fire".Like Relena,Noin's only wish is to achieve peace.