transition from part 4: you manage to deal with Momo and now you continue chasing Uraraka, you call one of your friends to help you, in this case Tsuyu....a big mistake
Summary of part 4: After you deal with Mina and then Momo, you continue your pursuit after Uraraka. You manage to catch up with her and even get help from another classmate of yours, Tsuyu Asui, who uses her long tongue to trap her. But Uraraka, even though she is a bimbo, manages to free herself by squeezing Tsuyu's tongue. She run at Tsuyu and kissed her to turn her into a bimbo as well. After Uraraka runs away, you will see Tsuyu using her tongue to hold her body, trying to stop the transformation... but...it was in vain and Tsuyu begins to release her tongue from her body, letting her body grow, succumbing to the transformation just like her friends who got infected before.