Type-Moon, but I Summoned a Round-Headed Old Cat

Mo Chuan is 16 years old and has transmigrated. Unfortunately, he ended up in Fuyuki City and was tasked with resolving the Fourth Holy Grail War. Mo Chuan never thought he had any chance of winning, until he summoned a round-headed, round-bodied blue raccoon with no ears.

While the other Masters fought over the corrupted Holy Grail, Mo Chuan had already obtained a genuine wish-granting machine. So he decided to give these magi a small taste of 22nd-century science.

Use the 4D Pocket and humanity's oldest chubby tiger to trade Noble Phantasm blows; tame the ferocious "Hound of Culann" with Momotaro's Kibi Dango; take the Emperor into space to witness the true sea of stars; turn the decayed Old Worm into a Hero of Justice; show the Hero of Justice the terror of nuclear peace...

"Doraemon, help me!"

"Honestly, you're hopeless. Let's use this."

"Ta-da!"

"The What-If Phone Booth!"

Type-Moon's Fourth Holy Grail War? Hah, it's just a Doraemon movie.