In this au, Muichiro Tokito, a high ranking demon slayer (hashira), was sent to China to annhilate demons since it was heard that there was recent demon attacks in the country, especially in the rear palace, Where the emperor and his concubines live. Muichiro was forced dress up as a cleaning girl. Lishu, a high ranking concubine, who was a former concubine of the previous emperor, now a concubine to the current emperor, noticed that one of her ladies in waiting has been acting strange lately and one night. She heard noises from outside her room and saw her lady in waiting- no It was no longer her, but a demon! As soon as the demon was about to attack her, a young woman(?), in uniform saved Lishu and said, "You should be careful, There are demons here." said by the young man in uniform. For the first time... Lishu felt something tingling in her heart (other than Jinshi)...

For Gotou Hitori (AKA Bocchi now) this day was going amazing! She was happy! Tired, but happy! She was now in a band! (Her beginning may not have been the best, but she would improve on that, she promised herself!). She was so happy that she might have ended up...getting carried away and maybe getting off the train home early and maybe she ended up in a city she'd never been to before and maybe the chaos of Makochi was a bit too much for Bocchi's poor heart, but luckily she found a savior! A savior in the form of a boy her age who looks very...curious, but he's still super cool (although he doesn't seem to recognize it and Bocchi doesn't have the courage to say it), now if only she could communicate coherently with him... At least it's not that weird, since Sakura doesn't seem to be much better than her at interacting with people. For Sakura? This day was very strange for his first day exploring the new city (and of course he already got into a fight on the first day), but he thinks he's a good kind of strange, so helping a pink-haired girl with a guitar would hardly be what would complicate things more... right?! A crossover between Wind Breaker and Bocchi the Rock, there will probably be more references and characters from other works (I can't resist lol), but the main stories and characters will be from these two works. Maybe it will change to mature in the future and it will also be posted on AO3 and fanfiction.com