Bai Ming, 20, is a time traveler from China, having journeyed to the Type-Moon world. A member of Chaldea's A-Team, he beats up werewolves, slaps lovers, argues with gloomy, withdrawn girls, intimidates schoolgirls, and knocks out insomniacs. He owns a simulator system and fears the world isn't violent enough.

After traveling through time for ten years, without cheats or talents, Kiyoshi Tousaka has already accepted his ordinariness, and now he has to live an ordinary life. Then he met this noble lady in a gorgeous kimono under the snow. "I need your help." That's what she said. In the rainstorm upstream, his ordinary life changed. Many years later... "Which of us is your first love?" Looking at the two girls in front of him who looked like twins, Kiyoshi Tousaka fell into a long silence. The current situation is not that he is trapped in the Shura field of twin sisters, but that his wife has become two. To be precise, these two girls are both his wives. But how can they meet? They are obviously not in the same world! "Haven't you thought of the answer yet?" "You'd better think it over before answering." Kiyoshi Tousaka rubbed his hair frantically. Can't tell the difference! I can't tell the difference at all! I can't do this question! "I choose death, why don't you just give me a knife."

(No protagonist + secondary creation as the main part) The viewing screen suddenly came into everyone's sight. Before people could react, the secondary creation video that followed made everyone feel socially dead in different worlds.

Regulus: I'm going to Kariya's world to fight bugs. Is anyone going in a group? Black Cat: Big Thigh, please take me! I want to see my king! Mordred: Brother Lion, please take me! I want to see my father... Ugh! Watch Arthur and Lancelot fight! Saiki K: Brother Lion, can you come and help save the Earth first?

There’s only one rule in this Holy Grail War: out of the 1.5 billion people in this world, the last one standing will win the Grail.

—This is the story of seven kings from different eras descending upon this world, bringing with them their kingdoms, subjects, armies—even their lands. They all converge on Jerusalem to conquer it, fighting for their respective ideals and nations, in a battle to seize the ultimate Holy Grail. In short, it’s the Kings’ Holy Grail War!

The Conquering King, the Heroic King, the Omnipotent King, the Sun King, the Thorn King, Charlemagne, the Holy Roman Emperor, the King of Magic…

Faced with such terrifyingly powerful opponents, Suya—who transmigrated into this world, was forcibly dragged into the war for the survival of Britain, and became the rightful King of the entire land—realizes:

No matter the reason—whether it’s to stay alive, to protect a fake crown, or for the sake of the false Knights of the Round Table who follow him—right now…

“I must draw my sword immediately!”

Lin En, seemingly an ordinary Chinese language teacher at Sobu High School, harbors a secret. He's the sole occupant of the "Ten Thousand Worlds Safe House"! His "classroom" connects the world's most elite "problematic beauties"! At the outset, the safe house "picks up" a young girl who's recently lost her sister and is filled with hatred. Faced with her murderous intent, Lin En gives her a single assignment: "Go back and face your anger!" As Shinobu Kocho unleashes bloodshed across the Demon Slayer world with this "assignment," Lin En uses his first reward, "Emotion Perception," to precisely tap into Yukino Yukinoshita's loneliness! → Homura Akemi: From "Desperate Girl of Reincarnation" to "Demon God Who Controls Time and Causation," rewriting fate and subverting the universe! → Misaka Mikoto: From "Sinful Princess of Electricity" to "Thunder Empress on the Path to Absolute Power," piercing the divine realm with lightning and reshaping the order of Academy City! Of course, there's also the occasional everyday pretty girl... This world is truly wonderful, but sometimes it's just too much...

[Day 1 of the time travel: Wearing Adi King's battle suit and dark red hair, is Emiya Shirou actually me?]

[Day 3: Confirmed, this isn't the UBW questline, no Red A experience packs, so I'll have to rely on myself to master Unlimited Bladework.]

[Day 20: Strengthened my magic proficiency and began practicing Projection. During this time, I met an alchemist who asked me where I got all these alchemical weapons made from recycled metal.]

What the hell is recycled metal?

[Day 90: Finally mastered my first Noble Phantasm, Projection. They exclaimed, "This is the Seven Kingdoms," an outstanding achievement in alchemy."]

Huh? I don't really understand you alchemists.

...

[Day xxx: Huh, I finally mastered Unlimited Bladework! Their expressions were fascinating, and they asked where the Nibelungen was.]

How come you don't even know about the inherent barrier? Isn't this... Type-Moon!?

"Because glory lies far away!"

On the Magic Eye Collection Train, the Rain Witch smiled with satisfaction as she watched El-Melloi II display the might of the king's army in front of Hephaestion.

"Broken down~"

In the world of Artificial Girl + Rozen Maiden, the fairy tale witch hugged the mercury lamp and hummed briskly with light steps.

"This is a friendly vampire."

In the world of Bloodthirsty Assault, looking at Nangong Nayue with a wary face, Elquet smiled and waved.

"Seven dragons, turn into my fingers!"

In the world of Problem Child, Draco (Beast Nero) rushed towards the high sun with a grin.

...

Since you are here, come in and take a look

Kagerin, who traveled to Type-Moon, had a fantastic start with a 9.3 rating, but his fate was shattered when he encountered Kukulkan in Fuyuki City. "Is this still the Fifth War? We've already reached the Lostbelt." Fortunately, the cheat code arrived. [Travel to a certain era, and your actions will be settled based on your actions.] [Warm reminder: I don't have any talents.] "Without any talents, trying to build a good board just forces me to go the popular unofficial history route!" "Wait, I think I understand." [How did the spirited young Minamoto no Raikou become the shogunate's sole shogun?] [The millions of monsters led by Ibuki-douji and Shuten-douji were no match for you alone. You must have sold them out...] [The incarnation of Izanami walks the world, why does he have a special liking for you?] ... [King Arthur's secret as a woman is revealed.] [Morgan's confidence explodes, and Britain is divided.] [You prioritize the greater good and reconcile the sisters. [You saved Britain, but Morgan and Altria fell into civil strife because of your beauty and wisdom.] ...To prevent the world from being destroyed, to protect world peace, and for the greater good, Yinglin can only feed the demon with his body (don't worry about being tortured by a woman and turned into a ⭐⭐). "Don't be afraid, children, the male god is here."