Yuu Tōsaka, the adopted son of the Tōsaka family, later went to the Clock Tower for "advanced training." His original plan was for him to pursue a career as a magus after graduation... until he stumbled upon a game disc. After opening it, he entered the game's world and encountered Tiamat right at the start. [Quest: Fight alongside Tiamat] "Wait, why aren't you asking me to save Humanity?!" Yuu Tōsaka quickly discovered his blind spot, but he ultimately successfully completed the system quest and spent a wonderful time with Tiamat. ...After that, he journeyed through several different game arcs. In Britain, he was King Arthur's childhood sweetheart. During the Fourth Holy Grail War, he found a girl who adored him... her name was Sajo Aika. After finally completing the game, Yuu Tōsaka was about to put the disc away for safekeeping when, one sunny afternoon, the Heroic Spirits he had captured in the past arrived. The Knight King, Morgan the Fairy, Tiamat, the Root Princess... Looking at the unique Heroic Spirits before him, Tōsaka Yuu began to sweat profusely. "The Heroic Spirit I captured in the game... actually became real?!"

Lin Ze traveled to an era where everyone could tam beasts.

As the college entrance examination approached, he only had a little snowball, which was called an ornamental pet.

"Little Snowball? It's just pleasing to the eye, but it's useless."

"What's the use of a pet that can't evolve?"

"The potential is too low. It will be impossible for me to break through to the first level in this lifetime."

"Want to get into the Beast Taming Academy? Impossible."

Questions, sarcasm and ridicule came one after another.

Lin Ze looked at the pet panel calmly.

"Hidden evolutionary route!"

"Queen Route: An evolutionary method with unlimited potential, capable of evolving to King level."

Little Snowball, Ice Crystal Soul, Snow Girl, Frost Blue Girl, Extreme Ice Princess...Snow Queen!

......

Everyone: "What? Snowball has an evolved form?"

"Holy crap, why are all your pets of species I've never seen before? And they're so powerful!?"

Main characters: Lin Ze, Guan Ning,

A certain unlucky otaku died for bravely saving a little loli, and then traveled to a parallel world on Earth and turned into a fifteen-year-old girl. He discovered that this Earth had superpowers and magic, and had fought a real world war with invaders from another world. He also gained the ability to transform into a two-dimensional girl.

And so, a certain reborn and transformed otaku began her new life in a parallel world, a life of utter coolness and awesomeness...

Protagonist: "What a cool girl! Everyone else summons 2D girls, how come I become a 2D girl myself? This is unscientific!"

(PS, I wrote this book for the benefit of mankind, so please don’t expect too much.)

(PS2, single and ambiguous flow, married yuri flow is meaningless, because I am going to write more than a dozen endings)

(PS3: QQ group for this book: 243364036)