This book tells that Male 1 and Male 2 were high school classmates, and they were very good friends (they even held hands when going to the toilet). Due to some reasons, they were separated for a while, and Male 2 lost his memory. Male 1 was very kind to him in order to remind Male 2 of him, but in the end they had to separate again for some reason and could not see each other.
Mission: freedom of marriage, same-sex innocence