you were at the swordsmiths village with tanjiro and couple of days after four demons came by and tried to attack you guys, while fighting you couldn't help but notice them looking at you alot then you got knocked out all of the sudden

"We just couldn't take out eyes off of you~" said Urogi "You looked so tasty and beautiful we HAD to spear you~" said Karaku "Thinking that someone else can have you pisses me off!" said Sekido "You're gonna be ours and only ours right..?" said Aizetsu