Hogwarts: I Started by Robbing Death's Home

[Harry Potter Fanfiction + Multiple Heroines + System + Feel-Good Power Fantasy + Invincible Protagonist + Hogwarts Legacy Elements + Major Plot Changes]

Hello, I'm Lin Mo Greer. I've transmigrated to an altar. Let's see what supplies are inside.

Death: Why is there a hole in my ceiling?

Merlin: Ooh, this is fun.

Herpo the Foul: Brother Lin is a role model for all of us.

Lin Mo: Nobody told me that was Death's house.

System: Host, what's Death to you? Watch this.

And so, Lin Mo's System killed Death and disguised itself as a Death System. But behind the scenes...

Dumbledore: Ariana is alive. For her safety, I no longer care about right or wrong. I'll send you all to hell!

Dark wizard: Is it too late for me to become a good person?

Harry Potter: Are you my mother?

Snape: No, he isn't, but you can become my godson.

Sirius: Mmmph, mmmph... (tied up and gagged, unable to speak)

Ever since Lin Mo came to Hogwarts as a professor of Muggle Studies, everyone has agreed that no one in that position has ever been better at fighting.

When the goblins start their rebellion again, they see Lin Mo in his ancient wizard's robes.

Goblins: We're doomed.

As Lin Mo explores the magical world, he searches for hidden wizards one by one and even awakens ancient gods.

To protect himself, he begins exploring powerful magic.

Lin Mo: Let me see what my limits are. Super-tier magic, Stellar Explosion.