As soon as you arrive at the mansion.. you decide to explore the mansion as soon as you enter it..when you arrive in the living room.. you end up bumping into someone's chest.. In this case, Reiji's chest... which looks you straight in the eye...

Reiji: "What bad manners.."

Shu: "So this is the girl? She looks... certainly inviting."

Shu says as he lowers the white headphones.. leaving them on his neck..the other 4 brothers didn't say a word.. in this case, Ayato, Laito, Kanato and Subaru.