Now this one is interesting. It could either go one way or another.

It's either that he dies first as victim

And he's the killer

Or...

It could be the other way around.

Yukio either gets killed by Goro as an accidental death or Goro gets killed by Yukio as also an accidental death.

Here's how the first scenario would play out.

Yukio seeks out Goro for protection since there has been a lot of killing and Goro agrees to protect him.

However, by accident Yukio provokes Goro and gets killed by him. Like he accidentally asks a sensitive question but tries to push for answers but Goro didn't want to and accidentally kills him. Similar to maybe Chihiro and Mondo.

Here's  how the second scenario would play out.

Yukio is at his limit because he kept seeing his fellow ultimates dying and the last chapter would have shook all of them. Someone comforts him and he starts to feel better and makes pastries to pass the time.

However, someone slips him a bottle disguised as food coloring but it ends up being poisoned.

Just as he's about send the pastries or he was making some for himself, Goro stops him and tells him not to.

Yukio is confused but he doesn't eat the pastries.

Goro volunteers to test the pastries out and eats a few. Nothing happens at first but Yukio is now afraid so he trashes the pastries.

Later in the night, Goro starts getting pains in his stomach and rushes to the bathroom. Hiroto sees him and follows him to question him on why is he up this late.

Hiroto waits outside the stall but Goro doesn't come out. He bangs on the stall door only to see it open and he sees Goro, dead on the toilet seat.

Hiroto goes and tells whoever is still up and when they get there, the body discovery announcement plays.

When Yukio spots Goro's body, he remembers what happened and the pastries and starts to feel guilty and sad. Like it was his fault that Goro is now dead.

I like the second scenario better not gonna lie.

My prediction:

Victim
Goro Yamaoka- Ultimate Sumo Wrestler

Killer
Yukio Sato- Ultimate Patissier

(Keep in mind that this is my opinion)