Yarisugi Brothers

Hinata can't stand his father's assistant Yue. He's always coming onto him and manages to push his every last button. And it doesn't help that regardless, Hinata's father is head over heels impressed with Yue. Yue is calm, cool, and composed compared to the feisty and energetic Hinata. And although Hinata is an only child, the two quibble and bicker like siblings. But siblings, they are not... or so they thought!

(Source: Futekiya)