is "imprisoned in eternal night" a novel or a manhua?

a novel !!! its SO cute i litr finished reading it like two days ago

ooh okok, thank you. Then I will read it.

is there like a version where you read it with pictures? kinda like manhuas? or is it only in like a reading form with no pcitures cuz ive seen pictures of them and i wanna know if theres any version like yk yk manhua typee