Chakra Dimension

This idea came to me as i was thinking of marvel mutants and how most of them are connected to different dimensions to get their powers (like Bobby Drake or Scott Summers and his siblings or Kurt Wagner etc.)

So, what if an MC in the world of Marvel (reincarnated or not, up to the people who use it) was a mutant connected to a very big dimension of chakra and the energy they use and channel from it is chakra.

The chakra energy

Having a connection to this energy dimension gives one the ability to use chakra. No, there's no hand-signs, this is not Naruto. Though if the MC wants to name his abilities/jutsu and shout them out while doing it, he can.

Just having chakra changes the person. Makes them stronger in base form without actively using chakra to enhance their strength, speed, durability, physique, senses (all 5 plus energy sense and danger sense). Actively channeling chakra enhances all those even more and focusing the channeled energy on one thing alone (e.g. like physique or senses etc.) makes the enhancement even more pronounced.

The MC can only use chakra on his own to enhance whatever he wants to enhance, whether its strength or physique. If the MC wants to use the elements, he/she has to make a contract with a dimension lord or gain their approval to use their elements. 

Wind, earth and sand elements for Shukaku. Blue spirit fire for Matatabi. Water, lightning and space (pocket space element) for Isobu. Fire and lava elements for Son Goku. Fire, water and steam elements for Kokuō. Water and acid elements for Saiken. Wind and dust elements for Chomei. Water, lightning and ink elements for Gyuki. Green fox fire, wind, mind (illusions) and body (shapeshifting) elements for Kurama. And fire, wind and blood-black lightning elements for Madara the ten-tailed wolf.

If the MC wants to do more than the basic elements. Stuff like space, time, thought (reality -warping. Thinking of something and it happens), gravity, light, darkness etc. then the MC has to make a contract with Kaguya (the ruler of the chakra dimension) and gain her approval.

The MC can also use chakra to summon an animal clan warrior but only after a contract was made with them allowing their aid in battle or other situations.

The Chakra Dimension

This dimension would have its lords (ten of them) and one ruler (Kaguya).

All nine tailed beasts (biju) of Naruto (from Shukaku to Kurama) plus a ten-tailed wolf rabbit (or whatever creature you want the ten tails to be) OC are the dimension lords of the chakra dimension. Their human forms are like the Otsutsuki. Pale skin, white eyes and horns on head.

All ten of them are Kaguya's children and creations she made and split power with and gave some authority over her dimension. The ten of them decided to use their given power to create their own realms within their mother's dimension and all summon beasts (animal clans) are residents of their mother's dimension and their realms within the dimension as they are either created by the ten biju gods or by their mother, the ruler of the dimension.

Also, the dimension is a real thing and the MC being connected to it can access it physically or with his spirit form.

The realms of Kaguya's children.

The desert realm of Shukaku the sand racoon god. Made of dunes, lots of sand, caves, and couple oases (plural of oasis). Mostly inhabited by the snake clan commonly called the snakes of Ryuchi caves.

The fire realm of Matatabi the cat god. Lots of volcanoes in this realm and rock and plants that look like they're on fire without actually being on fire.

The water realm of Isobu the Shrimp-Crab Turtle god. Made of nothing but water with lots of islands (like one piece anime but smaller) and huge trenches in the waters. Home of several water-based or water controlling but living on island animal clans.

The mountain realm of Son Goku the Gorilla god. Similar to Black Myth Wukong, made of several mountains, each with their own features and inhabitants. Lots of volcanoes in the realm too. Because its similar to Black Myth Wukong, Son Goku's realm is the most popular and many animal clans (summon creatures) made their homes in his realm with most of them controlling a mountain each.

The hot spring realm of Kokuō, the dolphin horse god. Made up of lots of geothermal areas and some volcanoes with geysers and lots of hot springs. Very humid realm.

The swamp realm of Saiken, the snake slug god. Has lots of humid places and swamps.

The sky forest realm of Chomei the insect god. Has lots of floating islands with their own forests with dense foliage and biodiversity. Animal clans also tend to occupy the islands.

The sea realm of Gyuki the octopus ox god. Like our world, it has continents and surrounded by water.

The flexible realm of Kurama the rabbit fox god. It has lots of farmland, grassland, woodlands and forest and even deserts and cold places like Arctic tundra. It's the biggest of all nine realms and the second most popular for the animal clans to live in.

Shadow realm. Created by all ten children of Kaguya. connects to all realms and even connects to the shadow realm outside the chakra dimension (a realm which is connected to all other dimensions). But only Kaguya, her ten children or those who have her permission plus the MC who's connected to her chakra dimension can access the chakra dimension's shadow realm entering and exiting at will. No other can.

The ten-tailed fox god Madara doesn't have a realm of his own. He's a momma's boy and follows her everywhere. He lives in the main dimension, not within a realm in his mother's dimension. There are a few animal clans that live within the main dimension too. Madara did however help in the creation of the shadow realm of the chakra dimension alongside the other children of Kaguya.