Fate/Murnan Ikigai

Set over a decade after the events of the Unlimited Blade Works route (True Ending), Shirou Emiya and Rin Tohsaka are still recovering from the events of the Dismantling of the Greater Grail, but the couple is committed to achieving their happy ending in spite of all that's been lost.

In part 1, Rin has a surprise in store for Shirou...

In part 2, Shirou returns home to finally settle down with Rin.