For a time, Arashi had no idea or report where Hana was, but he'd forced himself to relax, due to the nature of the Precipice World, time was convoluted between Soul Society and Earth(or Hueco Muendo for that matter), time could either pass more slowly, or more quickly through a variety of factors still not understood entirely, even by Captain Mayuri or the famed Urahara.
Afterall, for all he knew it could have been weeks to his few days in the human world, or the reverse, he had no way of knowing, so with a sigh he settled down and got to work for the next five days, training and filling out paperwork for his ill captain. It was then that a messenger arrived "Lieutenant! We have an urgent situation in the human world, you are to be dispatched there to deal with a hollow incursion by order of the Central 46!"
That was highly irregular "Why am I being sent to deal with a mere hollow incursion, aren't there lower ranking shinigami who can deal with the problem?" He asked the messenger curtly and the man shook his head "It is not the numbers of the beasts that has the 46 concerned, our Scout Corps has detected an enormous breach between dimensions, we believe a Menos may be attempting to break through!"
That got Arashi's attention, a Menos Grande? No wonder they'd requested his presence, that was definitely a threat for a vice-captain or above, Gillians were not foes to be trifled with, he'd seen one...once, and had never cared to repeat the experience. He'd seen what the mighty cero was capable of, the Doomflash was quite likely the most aptly named ability Arashi had ever seen, even Captain's had to be wary of it's destructive force.
"I'll head out at once." He said, and hurried to get a Hell Butterfly, grabbing his zanpaktou, wondering what the hell was going on down there...
Be safe Hana