In the SS "Labyrinth of a Girl's Mind" Bell accidently splashed Lefiya with an aphrodisiac. Potions usually have an effect on contact as well as when consumed. Why didn't the aphrodisiac do anything?
I am not very clear the subject of magic in Danmachi, is enough to know a spell / spell?
According to lei, "magic slots" are needed, but is it possible that someone learns only knowing the spell? for example when Lefya learned the shield spell of Flivis.
I'm not very clear on how it works
The wiki article mentions volume 5 as her main series debut, albeit as just a mention (i suppose by description, not by name). I seem to have missed that part, so could someone please tell me in which chapter and at around what part it happens? (I'd also accept the physical volume's page and paragraph as an answer)