Nicola Hoshino is Naomi's best friend since childhood. The two of them have done everything ranging from getting their ears pierced to experiencing their first kiss together.  Nicola's described as the bold, beautiful and sassy beauty from Osaka (despite only being in Osaka for two months after her birth).  She believes in true love and will always cheer everyone on in that aspect.  While it's said that Nicola is usually the one who gets her friends into hairbrained schemes it is far from the truth.  

In short, Nicola is always there when needed.  

Note: Nicola didn't get a chance to appear in "Was It So Wrong" due to the fact she was busy helping Naomi's parents distract the wedding guests while the others handled the recuse.