Natsu no Yari Naoshi

He's returned to his parents' house in the remote countryside for the first time in years.

Despite his hulking frame, he is a rather quiet man of few words. The two beautiful sisters (Suiren and Aoi) he grew up with until leaving home are very dear to his heart, but being a pathetic coward, he never said a word to them

(Taken from chapter 1, from the "character intro" page, translated by Brolen)