Maple was looking for something new in NWO. Louise was looking for a strong and beautiful familiar. So as if the fate wills it, Louise manages to summon Maple. Then things happened. (Might be serious but definitely a humor story)

Since time immemorial, a lonely entity from the beyond decided to start creation. Their metaphorical hands weaving the fabrics of reality, and creating what is currently known as the Universe. For trillions and above, they watches as their creation evolves. They changed and give color to the once bleak nothingness of their space. Concepts were born. Then the stars and the worlds. With worlds there are life. Then life evolves to paint a more beautiful and diversified complexity to the planet. Soon, Civilization was born. The community of man thrives and expands on the planet. Later on, religion was made on different parts of the world. Speaking of many gods, and others of a single one. Though their main tenets always spoke of the entity who made everything. Giving multiple names to this creator. Cera. Celestia. Planetos. These are the three main religions of the world who specifically worships the one who created everything. They are the most prominent out of everyone. Despite the birth of the other gods, these beings worships this omnipotent creator. The one who gave birth and make it possible for even Creation to start. Times passes, and the lonely entity finally got impatient. They can't wait. No, SHE can't wait. The nameless entity decided to finally descend from the beyond with the use of an avatar. She wants to interact with the Creation that she have created. This is the tale of Cera Celestia Planetos. The true creator who created a physical avatar to interact with everyone. To see everything it can give to her, whether they be good or bad. (Cover image not mine. Any image or form of media that I will be using in the story are also not mine. This story is inspired by a lot of Isekai stories and other feel-good fantasy series) (Cross-posted on Royalroad)

Iroha Yuzu is just a normal girl attending school, secretly loves mangas and novels, and is someone who is satisfied with her daily life. One day, she have been hit by a truck speeding through the streets, killing her instantly. It should have been the end, but she is surprised when she wakes up in a different body. She found herself in a deserted land with no people on sight. The only thing near her is an entrance to a dungeon of some sorts. Being a person who reads a lot of light novels, she is very well verse on this type of trope. She concluded that she has been transported to another world. Though instead of finding a civilization or a way to go back to her world, she instead became excited to explore the dungeon itself. She didn't know that she is a newborn Demon Goddess. The dungeon in front of her is the most dangerous dungeon in this continent. Without intending it, she will be causing waves that will shake the status quo of this world. Everything in this world won't be the same anymore by her mere presence. This is her story, the New Demon Goddess in this parallel world. (Cover Image not mine)

Or Minoru Kagenou reincarnated as a girl.