Naoto Tachibana
of reading
He's Hinata 's little brother. and become friends with Takemichi after this one came to his aid in the past.
He believes Takemichi when he tells him to come from the future and in the present (2017) does everything to help him.
He becomes a policeman and is interested in the occult sciences to understand how Takemichi could go back in time.
Together they try to save the life of Hinata at all costs.