American Comics: Sign-In Unlocked, the Shadow Corps from the Start

The protagonist checks in at the iconic Iron Monger scene from the start, easily messing with Tony and Obadiah and earning a System reward.

From then on, he travels through the Marvel Universe, checking in at all kinds of iconic scenes and rapidly increasing his strength.

In Asgard, the protagonist awakens his demon bloodline and turns the tide, saving Queen Frigga.

Loki bows his head in gratitude, and Odin sees him off in person. The protagonist bids farewell to the Bifrost and returns to Earth.

He joins forces with Black Widow Natasha, taking on Hydra agents alone in a cargo hold. His shots are precise, and he emerges without a scratch.

Pierce is hysterical, but the protagonist calmly closes the net, wiping out Hydra once and for all.

He also allies with the Fantastic Four, lifting a school bus off a broken bridge and saving countless children.

The protagonist dismantles Doom's schemes one by one, earning the heartfelt gratitude of Reed and Susan.

At last, the protagonist wakes at dawn in Hell's Kitchen with Natasha in his arms, her red hair wrapped around his fingers.

Step by step, he reaches the pinnacle, making the entire Marvel Universe tremble and bow before him.

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.