Thanks for the comment and ideas! I'm really glad you liked it!
It is true, this project is probably something that I've poured most passion into until now xP
As for Gel's bad ending, I will explain it in the next version when I implement the dialogue with her! It is indeed one of the weirder things I've written
As for the captured monsters, yes, I plan on adding more little events in the future, either them with the MC or between themselves and the guildmaster, your idea is really interesting though, so I will definitely take reference! There's lots of space planned for everything!
The cat merchants will definitely be reccurring characters, and usually that means they will get a scene somewhere in the future, but yeah adventurer-chan is not that much of a dummy, she's just physically weak, but she would definitely get into trouble somehow!
And yeah, the Gel fight was supposed to be one of the end of chapters boss fight and none of those are going to be avoidable, the more important/urgent fights I decide to make the consequences a lot heavier for losing, so they would lead to a game over