Nanami Mei

The youngest of the five Nanami sisters

She has always been the closest in age to Riku, being one year older than him, so she often sees him as the perfect servant. Perhaps because she grew up surrounded by her older sisters, she hates being treated like a child. At the school she attends, she is in the cheerleading club and has a bodyguard, but there are rumors that this is due to her natural outward power...

[Translated from Official Site