Kyoukai Senjou no Horizon – Girls Talk - Volume 1, Preface

If video game currency is to exchange with real life currency, then it must have a powerful economic entity to guarantee the exchange rate. Furthermore this entity is none other than a country’s government. But why would a government guarantee the ability to exchange video game currency with real life currency?

War can also be fought with currency. Winning victory without firing a shot is a way to topple a country. A game where real money can be exchanged, a super money-making machine. Its name is [Zero] and it is a financial explosion from head to tail.

- Description from Novelupdates

Fate is a funny thing.

"Locke transmigrated into an era where everyone had Battle Beasts. Daemons were rampant and humans were forced to build walls around their dwellings while depending on Beastmasters to keep those monsters at bay.

The main character Lei Yu does not have the ability to practice his family’s martial arts. He gets stepped on and tossed around. Due to certain reasons, he leaves the family, coincidentally gains an ability, and makes his own path to becoming an immortal.

- Description from Novelupdates