Youko Honna

In the distant future, mankind has used up all of its fossil fuels, forcing them to turn to Solar Power as an alternate energy source. This causes a rift to form between richer and poorer nations, leading to war.

Yorito Morimiya loves taking pictures of the sky so much that one day, he wakes up at 4 am to take pictures of the sunrise overlooking the bay. However, he is deterred when he meets a strange girl trying to force a vending machine that stole her money. Yorito helps her with forcing the machine but when the machine finally vends, the girl has mysteriously vanished.

14 year-old Sumimura Yoshimori is the desendant of a monster exterminator, also known as a Kekkaishi. Unfortunately, he is not the only one. Yumikura Tokine, his older, female rival is also related to the Kekkaishi. They battle monsters and demons, protecting their lands and people, all the while vying for the title of rightful heir to the Kekkaishi bloodline.