Bleach 380: Devil, Devil, Devil, Devil
Cover is Kenpachi and Byakuya
Focus is on Yammi (Yammi hits Kenpachi which sends him flying. It was a weak air shot but it does the job)
In the middle of this Mayuri shows up.
He explains that he has with him a machine he made that can open the gates whenever he wants.
Mayuri: "Kurosaki Ichigo, by properly making it to the real world you'll become my #1 test subject."
Unohana appears and says she wants to go to the real world, too.
Mayuri: "Oh dear, if the 4th Division Captain is my test subject herself, she won't know if I've made a mistake."
Undaunted, she replies, "There definitely won't be a mistake. If there was and if Urahara-san heard then he'd make fun of you."
Ichigo: But those guys are in trouble (against Yammi.)
Byakuya: "You are the substitute shinigami of that town...so it's your duty to guard it."
Ichigo says he understands and warps away with Unohana. That's the end.