I'm not an expert since I mostly used google translate and my very bad Japanese skills, so please don't take my word on this. But, essentially Kashima confesses again to Toono, but this time with more detail and reasoning onto why Kashima loves him. Toono and Kashima then sort of go back and forth for a bit on stuff they don't understand and that Toono has never been in a relationship before (and that Kashima is a guy lol). And this where I'm not too sure about, but either Toono and Kashima go into a relationship (Toono hasn't returned Kashima's feelings though, the relationship is most likely experimental followed by Akemi's previous advice, which was to date and if he didn't like it and they didn't bang it would be chill) or Kashima tells Toono that he will try to make him fall in love with him. I like to believe they got into a relationship though (^ ^)
Sorry that this got so lengthy, hope this helps! (Btw you can use the google translate app to translate pictures and such for free, if you want to translate it by yourself)
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Could someone plz tell me what toono and kashima are talking about on the rooftop? It doesn't have to be in detail
(づ ̄ ³ ̄)づ