This guy surely is Otonashi Yuzuru, he was arriving to this place long time ago , he want to help people , he want to know what love is, so he wait someone , That one is Tachibana Kanade , who make him know what love is, so he want to stay in this place to help people . So last episode , He stay . Yurippe is the bug of this program , so It wake him up from a NPC .