Is It Wrong to Try to Pick Up Girls in a Dungeon?

[Shadow Skill]

You know, judging from this screenshot, it really suggests the stats reset on levelling up.



Also, Aiz is second to Hestia for showing her back, but don't mind me. I like her back.

Not sure, even in the Light Novels it is not explained clearly how their stats work on a level up. I suspect their base stats are there and present, just not visible on the level 2 sheet. I can't see them entering the dungeon with 0 stats, that's like asking to be killed and they do not start over at floor 1. I suspect their base level stats are there and maybe build on to their current level kind of like a passive skill or in this case passive hidden stats.

[Kraco]

Not sure, even in the Light Novels it is not explained clearly how their stats work on a level up. I suspect their base stats are there and present, just not visible on the level 2 sheet. I can't see them entering the dungeon with 0 stats, that's like asking to be killed and they do not start over at floor 1. I suspect their base level stats are there and maybe build on to their current level kind of like a passive skill or in this case passive hidden stats.

Of course they are. A level 2 character is automatically stronger than a level 1 character, on a theoretical level at least, as individual skills, bravery, battle sense, and wits naturally differ between people (as the useless elf is demonstrating to us every time). These stats are more like exp divided to different categories, and they need to be filled up before levelling up can happen.