One Palm Opens Heaven's Gate! And You Call Yourself a Summoner?

[Global Class Change] [Hidden Class] [Unconventional] You’re a summoner? That’s right. I can summon heavenly gates. But I have no idea what’s inside them! “Shut the gate! Demons from the demon realm are coming through!” “Is that an alien fleet? Is this a gateway to outer space?” “The dead from the underworld have escaped! Run for your lives!” “Why is there a river of lava in the sky? Did you open a gate into a volcano?” “Shut the gate!” “Humanity is doomed!” Everyone else farms monsters while you climb mountains? That’s right! A landslide is coming! What landslide? I’ll let it out in a moment! “What? Run! There’s a flood!” Oops, I opened the gate in the wrong place. Don’t worry, I’ll open another one.