Saitama and the Slime (OPM x Tensura)

New World

Saitama was drowsy.

Saitama blinked his eyes after a tired day of his daily boring routine.

Slaying monsters while his apartment smells monster carcass.

He was just lonely and he didn't meet Genos that time.

He was tired of this boring world, maybe he needs to rest and do his hero habit.

He lie down in his floor bed, he let out a sigh as he can see himself after 3 years.

Saitama:
"A tired boring day and then here comes tomorrow"

Saitama closes his eyes, he just dream of someone he can hang with so he won't be lonely.

Once he close his eyes, he dream nothing.

And then he wakes up in a new world.

He found himself naked, surrounded with magical rainbow ore and some type of grass??

No it's Hipokute Grass, a type of rare grass.

Saitama:
"What the heck? Where am I!?"

Saitama start to freak out because he is embarrassed he doesn't wear clothes

And then someone just spoke in his mind. It was a feminine voice in his head as if there was an entity in Saitama's mind.

Omni Sage:
"Good morning Master, I were created as your partner since you wished for a partner, please call me the Omni Sage"

Someone speaking in Saitama's mind as he try to slap himself.

Saitama:
"Am I dreaming?"

Omni Sage:
"You aren't Master"

Saitama:
"Where did you pop up from? Are you using some sort of mind reading? Did you also know I'm naked here?"

Omni Sage:
"I do master, rest assured I do not hold any negative comment to your actions as I will be your assistant"

Saitama:
"Stop talking to me like that and why did you appear in my mind?"

Omni Sage:
"To answer your question Master, you have been here a moment ago after I was created"

Saitama:
"What? On Earth? Are You Saying?"

Omni Sage:
"Negative, this is not named Earth"

Saitama:
"Just shut up will you?"

Saitama walk around the dark cave, he is annoyed as he decided to punch his way out.

Saitama:
"By the way, is my power is still here? I wanna go home"

Omni Sage:
"Your strength is still active but considering you haven't learned Magic Perception or Magic Sense, I suggest you to learn it right now, do you wanna learn it right away?"

Saitama:
"Huh? What is that magic thingy? Is that helpful?"

Omni Sage:
"As much as I know, this skill is usually helpful in sensing someone's energy/magicule and your surrounding, so I suggest you learn it anytime"