480 years... it had been... 480 years... Kokushibo had been a demon for 480 years.. and 480 years ago you set out on a suicide mission to kill the demon king and failed.. you don't remember anything after that. Yet.. you awake, it's night, under an awning of an old abandoned house.. 1820... 480 years, since you've 'died.'

It's raining, and your body materialized from this.. malformed sludge.. you remember your life in the past.. you were Kokushibo's wife. Meaning you have been, and still are, married to him.. for 480 years. It was storming.. you had to find your way to him..