Sensei, I loved the sunset seen from the rooftop of the school building. After graduation, if you think that this view will no longer be seen, you will feel lonely in asexuality. But more sadly, I can't see a sentry. I want you not to forget about me forever. So, at the end ... I want you to remember all the time, Sensei, can you hug me? Listen to my first and last selfishness.