Following the most intense battle of his life, a young man washes up on a strange shore.
In the days spent healing his mind and body, the two encounter a third person: A beautiful girl wielding a silver spear that calls Kojou..."Senpai.".
He is found by a swordswoman named Shizuka Kosugaya and informed that his name is Kojou Akatsuki, and that he is the fourth vampire primogenitor.
Following the most intense battle of his life, a young man washes up on a strange shore