honestly i’ve lost the plot, can someone summarize for me?

Its more on how the bride adjust to his new world...there is no like specific plot in here if im not mistaken

Well what I know right now is that koichi is training like to be able to use magic and he gets the magic from caius and his semen? Their trying to use magic so that they can like soften is his insides or something like that so koichi can take more of caius in. Not sure if it’s entirely correct tho that’s just what I remember