[Nagito's eyes sweep the water once more before he looks at Kel again.] I don't know if I'm qualified to give advice. People get upset all the time when I say things, whether I want them to or not! But you know, in... [Don't talk about the killing game.] In murder mystery novels, everyone is always trying to keep secrets, and everyone ends up upset anyway. So Mari-san crying might be inevitable!

[...Wait. This conversation is getting away from him. What he means is:] It's better if she's crying and then she can help out then if she's crying because it's too late to fix things!

[Because everyone is murdered! ...Except they don't have to worry about that part, so Nagito leaves it out.]