Iruka meeting Jiraiya while he is at the end of his prankster era. Jiraiya gets caught in one of Iruka's traps (we all know he doesn't, but whatever Iruka thinks he does) and asks him about Icha Icha 'what would you say I make her smth smth'. Iruka's honesty shows maybe little too much and Jiraiya is actually taking notes (usually people that are good with fuunijutsu are also crative). After a conversation Jiraiya disappeares and leaves Iruka a book with Icha Icha cover, but inside are his fuunijutsu notes.
So after he finishes the one he was given (in his flat, because fuunijutsu is kinda forgotten and he would rather people not know he is reading some old man's notes (he doesn't know it's porn)), he goes to a library and sees 'Icha Icha' on sale. It makes him curious, his eyes shining with excitement, so he decides to see what's inside, but before he can open it, a guy with weird hair and more then half of his face hidden is staring at him weirdly. Before he can ask the guy is gone and Iruka finally takes a peak inside, but instead of fuunijutsu notes he finds a romantic scene and starts reading. It's stupid, so stupid, but so interesting for some reason he buys it anyways.
Years later Iruka, Jiraiya and Kakashi are in the same room, Kakashi keeps saying that he read the book many times and he still can't get enough of the ending and how the female lead is protraited. Jiraiya is like "yeah, I changed it last minute, because Iruka talked me into a new perspetive". Iruka is all red in the face, Jiraiya leaves right after and Kakashi doesn't stop asking.
They get ramen together that afternoon.
