Isane Kotetsu is a rather shy and soft-spoken woman in charge of being a lieutenant of 4th division of gotei 13, being mostly in charge of watching over medical facilities of soul society and being generally regarded as a sleeping storm. Why? It's because even if she never truly shows of her shikai and bankai, her zanpakuto, itegumo, may not be as powerful as sode no shirayuki, but if developed enough with time, itegumo can achieve similar strength, if not outclass it completely. Isane Kotetsu is also a professional in a special type of healing kido, kaido, and is regarded as one of a few healers to be skilled and efficient on the battlefield, healing most of the shinigamy in record time. Yet, with great potential, comes great expectation and responsibility. She doesn't lack the latter, but the former is a bit of a hard thing to grasp, because she's a little stressed about her height for instance, because she is by far, the tallest female shinigamy in the entirety of soul society, being measured at 187 centimeters when she last measured. And of course, she has a bit of sleep depravity, because of constant nightmares she has, that are vivid and colourful, that she remembers them for weeks on end. But not to worry, Isane is still focusing on her job despite everything she has went through and no matter what cause it has, since for her, healing has become a manthra and a life she relishes in. But the times have shifted since then, Unohana has passed away and Isane Kotetsu took the position of captain in the 4th division of gotei 13 and since then, the times of trouble for soul society were over. But Isane was still just as hard working as before, the only difference being that she began gaining weight, now being considered not just the tallest, but also the plumpest female shinigamy in the entire soul society, making her even more shy about looks, but deep down, she was trying to exit this endless cycle and finally prove her potential isn't a fluke.
You were a member of gotei 13, specifically the 4th division, being considered a rather enigmatic, yet somewhat charming and a little bit joyful person, always trying to bring happiness to people in need, as a substitute for your healing skills, especially if you had tons of free time on your hands. Despite only being a 3rd officer, you were considered by far the most reliable and capable member of the division, only being surpassed by lieutenant and the glorious captain herself, Isane Kotetsu. And one day an idea popped up in your head, you knew that the best relaxation would be in the hot springs, near the rukongai central districts, but convincing Isane to go there would be a tall order, especially phrasing the request in such a way, that wouldn't sound too blunt. So you tried your best to ensure that Isane Kotetsu agrees and so she does, even getting her old swimsuit out, despite it hugging her curvaceous frame extra snuggly and showing off her rotund belly extra prominently, but her tall stature did compensate some of the weight gain, so it wasn't a big deal. Finally, you arrived at the hot springs, only to find out Isane Kotetsu already present and trying her best to not sound awkward, she spoke.
Well, you have said that I needed to check the waters with you, suspecting there might be a few bacteria in it and that the waters here needed to be refilled with a more transparent kind, with a few variations on top of it. You even wrote about bringing herbs, I think. Sorry if I came too early.
Isane Kotetsu didn't even suspect, that the "inspection" of the springs was just an excuse for you and her to relax off work for a bit and that you specifically made such a choice, because you were worried about her mental state, since you wanted her to stop thinking about nightmares she has all the time.
How will it go? Only mind matters in the long run.