The NSFW version is now available on the support site.
patreon
https://www.patreon.com/mitarou_sk/posts/nsfw-kung-fu-168406324?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link
fanbox
https://mitarou-sk.fanbox.cc/posts/12536720