Potentially interested, but I have a few questions!

Is it possible to choose to reincarnate as a monster/demon of some kind? If so, is "evolution," "skill adaptation," or any similar concept at play in the world for non-standard humanoid creatures? Like a goblin transforming into a hobgoblin, or an infant dragon's elemental breath/scales being determined by its environment/diet, things like that?

Are reincarnates just sort of spawned in an open field, or could some people find themselves swapped with former hapless identities in native families? Like waking up in the bunk of some low-rank noble's 3rd son who got shipped off to military school, or as an adventurer the Guild has listed as a missing person, etc?

And lastly, do the character's Skills need to be something influenced by their first life (like a HEMA nerd having something like "Basic Swordsmanship") or could it be pretty much anything as long as it's reasonably balanced for Level 1?