For context: Nemuno, the lady with the knife, is a yamanba, who are youkai who look like kind old ladies that live in mountains and invite lost humans in for shelter and food, but end up attacking them afterwards. However, in Touhou, these youkai don't actually attack anyone, they just send back adults who wander in their territory with a warning and even keep lost children in and raise them surprisingly very neatly. This is why Nemuno is kindly treating Rumia, the small girl, to food and tea, but being a yamanba and holding a big knife (lol), she ends up looking more scary instead, especially her face!
@@durakeno5575 Most Yokai eat humans, they are simply prohibited from eating those from Gensokyo. That's where Yukari Yakumo comes in, she made the Gensokyo Barrier able to let certain humans pass through, so they can be hunted down and eaten by Yokai. (Thus her nickname "Mastermind behind the Spiriting Away") Sakuya for example is apparently capable of preparing human meat to make it look like cake (-> Flandre Scarlet has no idea that what she eats was once human, as they were made to look like foodstuffs, like cake or similar. If Flandre herself would go hunting, she wouldn't be able to control herself and blast her pray away, so that no drop of blood would be left. Source: Comments from EoSD)