Probably yes, but is there also a platform like mangadex for light novels?
besides aggregate sites, not to my knowledge.
the closest is probably novelupdates.com where the site will redirect you to the translator's site.
but there's a lot of site where they host a bunch of translator. you might want to inquire to one of them if you don't want to use NK.
my advice, if it's not too much for you to use NK, just use NK. after that, leave a note in your MANGA translation(this manga chapter corresponds to novel chapter xx. you can read it in NyanuKafe). then sign up in novelupdates for future readers.
if you still want to use other novel sites, foxaholic have a lot of japanese novel that fit into this manga's genre. but do try to search around yourself.