Emiya Shirou Returns from The Elder Scrolls

Shirou Emiya accidentally transmigrates to Skyrim, where he joins the Dragonborn Aemia and the vampire princess Serana on adventures, getting up to all sorts of mischief and dabbling in alchemy and enchanting. In the end, they defeat the World-Eater, the dragon girl Alduin. The good news: he makes it back to Fuyuki. The bad news: it seems he’s gotten caught up in something weird again. A red Command Spell appears on his left hand, and Saber descends. A black Command Spell appears on his right hand, and the World-Eater Alduin follows close behind. Saber: "Master, please explain your relationship with that dragon girl." Kirei Kotomine (female): "Boy, bring me joy!" Gilgamesh (female): "Mongrel! I permit you to gaze upon me, but I never said you could pin me beneath you!" Shirou Emiya: I just want everyone to be happy!