Life and Death Don't Matter, So Let's Fight [Touken Ranbu Crossover]

As an elite captain-level fighter in the Soul Society, Sen'in Chiaki has been having a pretty rough time lately. Sure, it's perfectly normal for people in the combat divisions to die in battle, but what the heck is a so-called Saniwa? Fine, at least the Zanpakuto set a good precedent, so these so-called sword warriors are something she can accept. It's just that way too many of them have the same faces and similar backstories, right? They're other people's problem, so she shouldn't worry too much. But Weren't they only supposed to protect history and defeat the Retrograde Army? Where did all these so-called yokai, ninjas, and heroic spirits come from? Sen'in Chiaki glanced back at the giant babies in her honmaru, clamoring to be fed (or so it seemed!!!), and patted the head of one of her attendants kindly. "There, there. Just go back and deal with the Retrograde Army. I'll handle the rest, " I haven't even gotten serious, and you already think I'm Hello Kitty?! A few notes: 1. Chiaki's personality: a laid-back powerhouse, decisive and ruthless; takes life and death in stride and fights anyone who picks a fight; fiercely protective and unreasonable about it. 2. The main setting is Touken Ranbu, with occasional visits to other worlds. 3. The main pairing is with Tobirama (not the Second Hokage from the original work).