Type-Moon Simulation: Starting with Conquering a Greek Goddess! - Chapter 451: Not a Subject, but an Elder Brother

The world had changed when the System arrived, alongside the Cataclysm that filled the world with monsters. The technology was gone, replaced by classes and skills that allowed the people to fight back. When Devon ended up as a Blacksmith, a class that didn’t grant Intelligence, he had to face the reality, that his old career that he loved - mathematical sociologist - was over. Instead, he had ended up as yet another discarded member of the production class, overshadowed by the existence of the System Shops to the point of total marginalization. But, what if all he needed was to reapply his scientific thinking to the System...

Leon transmigrated and became a lab rat for Hydra. But he ended up awakening the sign-in system.[Ding, sign-in reward: Glint-Glint Fruit(Pika Pika no Mi).]He starts by destroying the Hydra Base.He accumulated some time and got himself another reward![Ding! Get the sign-in reward: Sun Breathing Technique.]

A game of life and death, a game that hides countless secrets. Winning will give you supreme power, and everything in the game can be brought back to reality. However, everything has a price. Once you die in the game, you will also die in reality. When the boundary between the game and reality becomes illusory, you can win everything or lose everything. Do you dare to play such a dangerous game?