The dynamic here is absolutely divine. Kaoru slipped into Chisato more easily than Chisato into Kaoru, but it gave both of them a window into things they would haven't been able to attain on their own. And even when they switch back, there's little details from that time that they continue to carry with them (against their will, lmfao). It's like... everything good about bodyswap AUs, condensed into 26 pages.