Cómo puedo desbloquear estás escenas ayúdenme porfa
Ayumi's replay 7 and Mai's replay 3 are from Favor Exchange interaction. Call them to the office during the sandbox section and ask for it. If the option doesn't appear or they refuse it, they need higher corruption/affection and/or low grades and/or strikes to their record.
Ayumi replay 3 is Her's and Soushi NTR. There's multiple posts about how to get it in the comments already, but basically encourage her to pay her debt to Soushi and not have her grades be high after the first exam event.
Secondary Characters replay 5 is the Suzu's bat's other route. You already have the replay 6, just choose the other option.
The first NTR event between the two is the week after the first weekly exam. She'll pay her debt to him somehow. In order for her to offer herself, she needs a high corruption and to have scored low on the exam. MC can then convince her to do it in a preceding event.
For the most recent NTR event between the two, call Soushi to the Office to decide how the deal over having Natsuha (Ayumi's ex) as a student will go down. If Ayumi has a high enough corruption (something like 30 irc), MC can offer Ayumi then convince her afterwards. Then just wait until the event happens.