Yup, it abruptly ends on a cliffhanger. Not clear on the circumstances, but after this chapter was published Inamitsu abruptly changed publishers from Shogakukan to Akita Shoten and began serialization of Seishokuki.
It's somehow understandable why not even the author cared about this one, this is a perfect 00s meh manga. I don't know how to explain it, but around that time there were a lot of mangas like this, just not wacky or too refrained to be really funny.