Another was a 2009 horror novel that got a manga adaptation in 2010. This was adapted into a 2012 anime series that had 12 series airing on TV from January to March, a prequel OVA released in May, and a live-action film slated for August.
Mei Misaki is a central protagonist of the anime series, she has black hair and tends to have one side of her face covered.
She is joined in the bath by Misaki Fujioka who has brown hair and shows both eyes. They are relatives.
Mei Misaki wearing a white towel and walking toward the bath behind Izumi Akazawa (wearing pink)