He's My Shero -When Beauty Becomes Beast-

Maki Kurasawa is just a regular girl who works in a P.R. department. After a particularly bad day at work, she feels too sick to go home, and a tall beauty with long black hair helps her out. The gorgeous girl's name is Kiyomi, and she's so stunning, she turns heads wherever she goes. But, unbeknownst to Maki, Kiyomi's name is actually Takeru... and he works at her company. "I've fallen in love with you..." he says, and Maki starts to have feelings for him, too. But, Takeru has another big secret he hasn't shared with Maki yet...

(Source: Renta!)