This is based off of a web/light novel by same author. The manga may have been discontinued but the novel is still ongoing. For more information:
https://www.novelupdates.com/series/shiro-no-koukoku-monogatari/
And
https://www.mangaupdates.com/series.html?id=135733
Thanks for informing, though im more desperate now seeing that the manga is discontinued and novel is not getting translated for 3 years as well.... But thanks for letting me know anyway ╥﹏╥
Yup the novel still continue, i have a feeling it because the manga didn't get much traction and not really popular, in the end its still a business so it have to make profit, and this genre getting more and more overused (harem) so its doesn't surprise me they dropped the manga production (since it used a lot more resources to produce, artist etc) and let the author continue the story in novel form since its cheaper.
What was that big fonted FIN. at the end?!?!?!??! What the hell, is that all? I was really liking it but what is this, why this abruptly giving a final??? Does anybody know anything? Is it really FIN? There was some note at the end from translators saying that it isn't the end if the Lect's adventures but then what is that Fin. at the end of 64.2????? Σ( ￣□￣||)