Rei is smuggy and mostly egotistic. 

She often lies about her age as well as her name and pass as a teenager so she can irritate others even more while bragging about being the number one Esu! player in the world. 

Rei describe herself as a dignified being, from a very wealthy and proud family, her name is apparently Ophelia. 

When in fact, she's just as rich as the other members, which means not rich at all and is actually not from europe. 

Rei was a bit jealous of Fuuka's cuteness, so she joined at first to compete her at being the best idol, but after a while she quickly realized it was not that important, and loved being an idol, and loving herself for her first.

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Type of voice : Could be high pitched or medium pitched.

She needs to sound dramatic and forcedly royal.Gives a lot of order and treats other as her servant, smuggish and tries to sound cute but still sounds mean while doing it. Deeper voice when angry.

example : Celestia Ludenberg from Danganronpa 1.

Song genre : Cute, Rock ex: https://youtu.be/fyhN3bbyjHA