She isn't that bad

In front of a cave, a young man wearing a black shihakoshou was sitting in a lotus formation in front of a dragon with pale blue scales and celestial blue eyes. The person sitting is Yamamoto he was listening to the blue dragon in front of him the dragon's name is Tiamat and she's one of the 5 dragon kings even though she's a female.

Tiamat taught Yamamoto the basics of this world and the supernatural world even if Yamamoto is a strong person even stronger than her there would still be a person above him.

"So Yamamoto-san now I told you myself and taught you about the supernatural of this world, how about telling me about yourself?" Yamamoto replied "Well then my name is Yamamoto I'm a shinigami I'm 2100 years old and from the Gotei 13*

Gotei 13? She never heard of that before but she wasn't interested in that she was interested in his sword on why it is covered in flames when he unsheathes it so curiosity got her as she ask him "Yamamoto-san can you tell me what's that sword of yours?"

Yamamoto of course replied "It's a zanpakto where all shinigami have, well not in this place I must say"

Tiamat was confused about what's a zanpakto so she asked him again "Show me the abilities of your sword then Yammoto-sa" Yamamoto nodded as he walk far from he, he then unsheaths his sword, the sword was covered in flames same as before but this time the flame was getting hotter it was melting all of the particles in the air in 8-meter radius, Tiamat is 15 meters away but she still can feel the heat.

While on Yamamoto's mind 'So it seems after I got sent here by ROB, I got even stronger my strength it seems on par with yhwach. Then, let's try my bankai" Yamamoto moves his right leg a bit to the front as he grips the sword tightly.

Yamamoto inhaled deeply as he said "Bankai, Zanka no Tachi Higashi: Kyokojitsujin" With a calm and chilling voice that could give anyone goosebumps, Yamamoto's katana became red, it exudes the same heat of the sun everything the sword touches will be evaporated and erased from existence surge of flame consumes Yamamoto's body but the flame didn't burn him it only went to his sword everything near him in 20-meter radius could feel the pressure and the extreme heat even the ground below him was melting Tiamat that was 15 meters away from him has her mouth open from shock and fear she couldn't even sweat since it will be evaporated because of the heat.

Yamamoto look at his sword and the ground was melting 'I got even stronger the particles around my body are evaporated even oxygen there's no air around my sword nothing' Yamamoto was surprised by his new power he wasn't expecting a big power up he only expects a small one, Yamamoto turned around as he saw Tiamat's expression.

'I want to test the other forms but I'm afraid I might burn everything' Yamamoto thought as he sighed. Putting his katana back into his sheath as he left the melting crater and started walking to Tiamat "How was that? That's my zanpaktos ability called bankai." He said walking past Tiamat as he took a seat on the floor in a lotus formation, Tiamat replied with a shaking voice "Well I didn't expect you to be far stronger than you could rival the great red himself"

Yamamoto was confused about who's great red as he asked her about it "Who's great red?"

She stopped moving as she look like a statue but she couldn't help but answer him "Great Red is the number 1 strongest being in the world and his a true dragon" Yamamoto nodded he was interested in fighting Great Red but he shook the idea off since he wants to live a peaceful life.

While Tiamat and Yamamoto were talking for hours they didn't know that time could pass by fast like a breeze as it was already night time Tiamat offered Yamamoto to live with her in the cave since he doesn't have anywhere.

Tiamat transformed into her human form (You should know already she looks like Tiamat from Fate series)

Tiamat led Yamamoto inside the cave as she made a little cabin for him to stay and sleep but Yamamoto couldn't help but ask "Why can't you sleep in the cabin?" Tiamat replied, "Well I need to protect my treasure!"

Yamamoto look starts at her but still ask "Why can't you put it inside the cabin or make a big cabin for your treasure to fit in" Tiamat listened to him, that's a good idea Tiamat thought about it and nodded as she destroyed the small cabin and put her treasures aside, and made a big cabin for her treasures to fit in and both of them can sleep well they have separate rooms.

Yamamoto couldn't help but smile as he went inside Tiamot followed him as well, Yamamoto went inside one of the rooms saw a bed, and took this room for himself Tiamat took the other room that was in front of Yamamoto's room. While Yamamoto was inside his room he lay on the bed as he thought about the things that happened he couldn't help but smile at what tomorrow offers him as he closed his eyes drifting to sleep.

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I'm writing on my phone and my fingers are hurting, I'm sorry if my writing is bad and my grammar shit my fault I don't know that much English D: