This is the seating arrangement of Class 1-A in the story.
Seat No.1: Yuga Aoyama. (expelled, then reenrolled into the Department of General Education)
Seat No.1: Touma Kamijou. (transferred from the Department of General Education)
Seat No.2: Mina Ashido.
Seat No.3: Tsuyu Asui.
Seat No.4: Tenya Ida.
Seat No.5: Ochaco Uraraka.
Seat No.6: Mashirao Ojiro.
Seat No.7: Denki Kaminari.
Seat No.8: Eijiro Kirishima.
Seat No.9: Rikido Sato.
Seat No.10: Mezo Shoji.
Seat No.11: Momo Yaoyorozu. (Recommended Student. Class Vice Representative)
Seat No.12: Kyoka Jiro.
Seat No.13: Fumikage Tokoyami.
Seat No.14: Inasa Yoarashi. (Recommended Student)
Seat No.15: Hanta Sero.
Seat No.16: Nick Kayama. (Recommended Student. Class Representative)
Seat No.17: Katsuki Bakugo.
Seat No.18: Izuku Midoriya.
Seat No.19: Shoto Todoroki. (Recommended Student)
Seat No.20: Mikoto Misaka.