1000/10! Re-read and buy the printed manga! They are both in their thirties, laid back, and a couple of bookworms. She's from the human world, brought into this world by 'God' to be a 'Savior'. Tsukina meets Il, a knight (the captain) as her first costumer in the book café she has set up. They fall in love, and are just absolutely meant for each other. They are absolutely PERFECT together. I loved so many aspects of this - the plot, the main characters, the supporting characters, the artwork, the dialoge and how well it was written, and just the feeling the book gave off.
The Savior's Book Café in Another World