Class 1-B is another class in U.A.'s Hero Department next to Class 1-A.
The majority of Class 1-B's students bare ill-will towards Class 1-A. Students such as Neito Monoma are jealous of Class 1-A's popularity and strength and desire to topple them. So far, Class 1-B appears to be making accomplishments of going beyond Class 1-A's performance. This is evident when only one of the Class 1-B students (Neito Monoma) failed the End of Term Test while five students of Class 1-A failed. Further, all of Class 1-B passed the Hero License Exam while Todoroki and Bakugou of Class 1-A didn't.
The interactions between the students of Class 1-A and Class 1-B have been few due to the rivalry between the two classes. While Class 1-B treats Class 1-A as rivals (Class 1-A appears to not return the rivalry), ultimately, the two hero classes are on neutral terms with one another. There are a few in the minority who do not bare ill-will towards Class 1-A and behaved friendly towards them, such as Itsuka Kendou.
| Sekijirou Kan|
|U.A. High||Class 1-A • Class 1-B • Gym Gamma • Heights Alliance • Lunch Rush (Place) • Nurse's Office • Recovery Girl's Branch Nurse's Office • Replica City-District • Sports Festival Stadium • Unforeseen Simulation Joint|
|Cities and Wards||Hosu • Kamino Ward • Keikei City, China • Musutafu, Japan|
|Households||Gran Torino's Apartment • Midoriya Apartment • Ochako Uraraka's Apartment • Todoroki Abode|
|Hero Offices||Building Manager Office • Cabin • Hero Office|
|Other Locations||The Beast's Forest • Dagobah Municipal Beach Park • Hosu General Hospital • Kiyashi Ward Shopping Mall (Wookiees) •|