[It's an arrangement that works wonders for them both, as Yato himself needs a good opponent to keep his skills up and to practice fighting without a shinki helping him out. He's done it before, but not often enough that he couldn't stand to have frequent refresher courses. Besides, Katsuki is fun in battle, being unpredictable and nimble thanks to his Quirk.]

Ah, sorry, that's not really something to celebrate, huh...

[Immediately Yato's face falls into one of guilt, not having meant to have dredged up any unpleasant feelings or memories. Especially not today of all days. This is why he's a bit of a recluse despite enjoying being with others; awkwardness and ineptitude abound when he tries to interact with people. It's not something he's had a lot of practice at, despite his long life.]

Mmm, yeah, that makes sense. Maybe one day I can give it a try for you. [As something of an apology for sticking his foot in it this time around.]