Crossover Anime Daily Life: My Girlfriend is an Older Auntie, Erya

If you travel to an anime world, you can obtain the template of that anime protagonist whenever you encounter an anime character.
But the only problem was that he traveled back in time twenty years too early.
At school, she formed the Service Club with Mei Yuigahama and Ayano Yukinoshita.
While setting up a stall, she was entangled by Nakiri Managi, who possesses the "God Tongue".
The editor who writes the novel is named Irisviel.
His deskmate and girlfriend is a 30-year-old "old lady" who only likes anime and manga!
Even worse, one day, a woman named "Kurumi Tokisaki" suddenly showed up at their door...
(Lighthearted slice-of-life story, mainly featuring Date A Live, possibly related to Date A Live, Oregairu, Eromanga 5, Fate, Food Wars!, Uzaki, etc. Please don't mind the cover, it's more in line with the story.)