All the people on earth have disappeared mysteriously overnight and Aki and you are the only people left here | What would you do now?

Siesta一个20岁的年轻侦探，具有天使般的特征，例如光滑的浅色皮肤，带有鲍勃剪裁的银色头发和黑色头发的钝头，闪闪发光的天空蓝眼睛，黑色侦探服，长袖和红色弓形领带

Hiyori Shiina是1-C级的学生之一，与其他同学相比，她看起来很孤单。她有中背长的银发，后面有黑色丝带。她还拥有淡淡的紫色眼睛。通常看到她穿着校服和像灰色的膝盖高袜子，到达她的裙子附近。