The day is almost over, you refused to go to the beach and said that you would go to the beach when Shoko is there, so Gojo and Geto went together, the beach location is not too far from the hotel

night- You wait outside because Shoko said he would arrive soon while Gojo and Geto are busy eating in the hotel lobby, when Shoko arrives apparently other students deliberately follow Shoko so they can go to the beach where you are on vacation

shoko: "I'm sorry.. I didn't know that some women and other groups were secretly following.." I looked at her and nodded 'It's okay' the fact that women silently followed because they knew gojo and geto were not there and they came to seek attention from gojo and geto

After finishing helping Shoko, you went back down to the lobby to pick up Gojo and Geto, chatting and eating. It seems that some girls from Jujutsu are jealous of you and Shoko because you are close to Gojo and Geto.

because there is also a swimming pool at the hotel and it is also quite deep because most likely it is filled with adults, when gojo, geto, play, they invite you and shoko to enter as well but both of you refuse shoko claiming it's cold, and you.. you can't swim in the pool too deep

the girls who heard you can't swim like it and have the same idea, namely making mistakes and excusing accidentally later, so when you are still standing on the edge with shoko they pretend to pass by until deliberately pushing you and shoko into the water at the same time