Which cartoon does this picture come from? Somebody help me. ! !

Wealth? Arterial red protocol? Is it called "the artery of fate" in Chinese or "the red agreement" directly? In 2008, the game company AUGUST launched a campus love game for beautiful girls, which was adapted into cartoons, novels and TV animations.

Animation is quite cured, right? Although not very famous? But good quality? One of my favorite works.

The character's name is Tougi shiro? Male number three (there are only three male characters in the animation? =? =? ) sister

I have this picture bag? Do you want