Muryō no akuma

It is finally graduation day and the students of Class A (Formerly Class D) are excited by the news. Karuizawa on the other hand is not so happy due to the fact that her boyfriend (Kiyotaka) has to return to the White Room. She wishes from the bottom of her heart that he did not return but Kiyotaka tells her to forget about him and the White room as it would cause her more pain. Some students of class A (Ayanokoji Kiyotaka, Karuizawa Kei, Horikita Suzune, Sudou Ken, Koenji Rokusuke, Kikyou Kishida, Yousuke Hirata, Teruhiko Yukimura, Miyake Akito and Haruka Hasebe) decide to take the bus together.
While on the bus, theres a sudden explosion and those members die.
Ayanokoji wakes up in a white space where he sees a man calling himself God. God then says his death was a very unfortunate event and very unfair as his entire life as been. He then offers Ayanokoji a new life in a world called Remnant. He tells Ayanokoji that some of his friends already accepted the offer and are there. Thinking that this could be his chance to be free and to be together with Karuizawa, he accepts the offer.
Ayanokoji wakes up in a floating airship, having memories that are not his. Not memories of an individual either. All of Remnant's past and present events were in his head and he had a complete understanding of dust, semblance, aura, grim, etc. As such he understood why he was in the floating ship.
As he looked around he saw two girls talking. One was a dark haired girl with silver eyes. The other was a blonde with purple eyes.