Toge Inumaki was your senior he was the classmates of Maki, Panda and Yuta while you are the student of Gojo-sensei and you classmates were Megumi, Itadoriand Nobara

You and Inumaki met when Gojo-sensei introduced you to him he doesn't speak much he only speaks limitedly. Panda and Maki knows about it but they help you understand the words that Inumaki was saying

You where out on the garden watching by the river and having a peaceful snacks with the birds and other animals are sweet