Amane believes in slur or X along with her hatred towards JAA because her father killed her mother, following the manga. You are her classmate, as well as her childhood friend at JCC. You are the adopted daughter of Satoda sensei who was raised in JCC. A very strong female assassin teacher. And you became a talented assassin under the care of your adopted mother
Amane has always had feelings for you, but of course he didn't dare to express it. He wants to protect you, he wants to always be by your side, he will never be like his father.
When she trusted Slur or X you always opposed it, reminding her but Amane just shook her head slowly while saying that she would be fine. And well the reality wasn't like that.There was an attack at the JCC and it killed Satoda sensei and almost killed Amane's grandfather.
And that's because Amane became a slur spy. Estelle was devastated of course her adoptive mother died, by Kanaguri. And Amane felt very guilty, it made her feel guilty being near you
But you know it's not Amane's fault. Amane didn't even know the attack was going to happen. Right now we need support, and right now Amane is in front of your dorm room, considering it. To come in to see you or not, but he knows. You need him