Within a Hollow Heart - Chapter 157: Volume 2, : "The Tipping Point"

800 years ago, 3000 dimensional gates opened across the entire world. In that moment, it was as if 3000 different colored eyes opened across the world as hordes of monsters swarmed out of these gates like tears.

Some could destroy city walls with one strike; They had bodies the size of a giant and fed on humans

Some latched onto humans, absorbing their bodies’ nutrients and enslaving humans

Some infiltrated the humans’ cities, disguising themselves as normal human beings while feeding upon human blood to sustain themselves.

In a night, the Human race fell to the bottom of the food chain.

The world had turned into a paradise for monsters…

The young man was so ridiculed for his wasted blood aptitude. Once he awakened the supreme bloodline, the dragon flew into the sky!

From then on, the geniuses and martial arts giants all bowed their heads, and the nine heavens and ten earth trembled!

Condensing the supreme Taoist body to achieve supreme power!

One finger penetrates the plane, one sword slashes the galaxy, one thought swallows the starry sky, and holds the avenue for eternity!

- Description from MTL

This is an alternate history. Decades after the fall of the Eastern Jin Dynasty, the world is still in chaos, although there is hope for reunification.

Cote: There is Something Wrong With HikigayaBy: XiaokoPatient Profile:Patient: Hikigaya Hachiman, Year 1 Class D, Tokyo Metropolitan Advanced Nurturing High SchoolDiagnosis: Adolescence SyndromeCondition Overview: The patient claims to have woken up in a parallel world, where both his physical age and relationships have drastically changed!Yukinoshita Haruno is now his classmate.Shizuka-sensei is somehow teaching at Sobu Middle School...And before he knows it, he ends up in a prestigious school with a 100% graduation and employment rate, stepping onto a fate that even destiny itself cannot predict!