"Jaryuu's kin" in chapter 1 : The Kanji-s for "kin" are 眷属 = family member / relative / kin / husband and wife / married couple . https://en.wiktionary.org/wiki/%E7%9C%B7%E5%B1%9E.
So her line can be read as : I was "eaten" by you , so that means I have become your wife ? We are one soul , same body . Our bodies have combined tohether and become one .
Dragon : WHAT ????
Chapter 4 is weird "she did a complete 360", in her alignment, from good to evil, but 360 is a full spin, 360 would be going from good to good, it should say "she did a complete 180".
That's not a dragon, it's a giant bitch lizard. What kind of "dragon" is weak? Bulls are herbivores but a bull will still fuck you up. So are pandas. They'll fuck you up too if they feel threatened. But this "dragon" got hurt by a kid throwing a rock. Not buying it. Funny tho, but not Konosuba funny. At least Kazuma isn't completely useless.