In a dark alley, a white light flashed and then a young man suddenly appeared. With a bang, the boy fell to the ground, the sound startling the rats that were dining in the garbage dump. "Ugh, it hurts." Akira opened his eyes with difficulty. He propped up his heavy body with his hands, squatted on the ground, and touched his forehead with his fingers. "Where is this? I remember I was playing games at home." Akira looked around blankly. He was surrounded by unfamiliar khaki walls and a faint stench. Looking at the palm of his hand, he saw a clean and tender little hand. Akira quickly touched his body and found that his height had shortened a lot, about 1.5 meters, and his body looked like that of a 13-year-old. The sudden change frightened Akira. He propped himself up against the wall with his hands and staggered out of the dim alley. The bright sunlight stung his eyes. He blinked a few times and looked around. The busy streets did not have any modern buildings. Instead, it looked like a medieval scene. The people around him were dressed in clothes that could only be found in fantasy novels. A group of people wearing armor made of leather and metal and equipped with a variety of weapons. A girl with animal ears on her head and a girl with long pointed ears walked together, shopping at the stalls with bamboo baskets in their hands. In the distance stood a huge tower, with its peak reaching the sky. One could not help but wonder where the end of the tower was. It reminded Akira of the Bible, where humans united to build a tower that they hoped would lead to heaven, also known as the Tower of Babel. "So, what is this place? It can't be a different world than the one I know and live in, right? I'm just an ordinary person. Please don't mess with me." Akira muttered to himself. He pinched his thigh hard with his hand, letting the pain calm him down a little. Although his body was shaking uncontrollably due to his inner fear, he still forced himself to stand up and sit back in the alley. "Calm down. I need to understand what is going on, where I am, and what is happening." Akira forced himself to calm down and think about the problem. "First of all, I must have transmigrated to another world. The animal-eared girl and the elf just now didn't look fake, they didn't look like headbands or props." Akira thought about the information he had just collected. "Next, these people are carrying weapons and armor, and even staffs, which means this should be a world of swords and magic." At this moment, bustling sounds rang out from outside the alley. "Wow, it's the captain of the Astraea familia, Alise Lovell, who is known as the Scarlet Harnel." "There is also the vice-captain Gojouno Kaguya, who is known as Yamato Rindou, Ryuu Lion, and Lyra, who is known as Thrail." There was a sudden noise outside. Although he didn't know why he could hear and understand their language, now was not the time to worry about it, so Akira quickly stuck his head out. A girl with long shiny red hair, a one-handed sword on her waist, with a visible enthusiasm on her face, waved and greeted everyone. Behind her were three girls, a girl in a Japanese kimono, with black hair and squinty eyes, an elf girl in hot pants, a mask, and long golden hair, and a short girl with short pink hair. "They look familiar, and I seem to have heard of them somewhere before, but I can actually understand what they say." Akira thought. "Ryuu Lion, there is also her familia?" Is it wrong to try to pick up girls in a dungeon or Danmachi for short. This is a world where various races live in harmony. In this world, humans are not the only race with wisdom. There are also many other wise races such as elves, orcs, dwarves, and even "Gods". In this world, the labyrinth city Orario is the center of the world as it is the only city in the world that has a dungeon. Since the Gods are basically immortal, their lifespans are much longer than any other species. The endless years made their hearts very empty and bored, so they descended to the mortal world and sealed up their divine powers. They bestowed their blessing or Falna on the beings on earth, giving them the possibility to become stronger, so that they could survive in a world full of monsters and form groups called "familias". Therefore, if you want to become stronger, you must join the familia of God. As a city created by mortals and gods, countless intelligent creatures yearn to come to this city, join a familia, become an adventurer, and realize their dreams. However, realizing your dreams is not something you can do simply by talking about it. Obtaining a falna will not allow you to make rapid progress or reach the sky in one step. Only through self-discipline, polishing of body and mind, and even defeating monsters stronger than oneself to achieve great things, can one become stronger. Each step is extremely difficult, and one may even lose their life. "So, what should I do to join a familia? From my current appearance, it can be seen at a glance that I am a loser who can't even beat a chicken." "Maybe I can't even beat Bell when he first arrived in Orario. No god except Hestia was willing to let him join their familia. Then the chances of me being accepted into a familia is even lower." Akira thought bitterly. At this moment, accompanied by a familiar music, a character selection panel suddenly appeared in front of him with a countdown. [1] [2] [3] Before Akira could react, a character had already been selected on the screen. [DFO character: Mage (male), beginning to transform the body.] As the fonts appeared on the screen, Akira's body suddenly erupted with a heart-wrenching pain. It seemed that various parts of his body were being peeled off, his organs were leaving his body, nails were hitting his head, his fingers were shaking uncontrollably, and he rolled around. "Ahhhhhhhhhhhhhhhhhhh!!!" Akira's screams rang out in the dark alley. The severe pain made it impossible for him to maintain his consciousness for long. After a short while, he fainted. "Hey, what happened?" A clear voice sounded before Akira fell into a coma. ······ When Akira opened his eyes again, he saw a pure white ceiling. "Strange ceiling, was I rescued?" When he stood up, Akira noticed the changes in his body. He felt like an overwhelming vitality and vigor. Although his body is now that of a child, he still felt a sense of power flowing in his body. He had a feeling that he could jump two or three meters. "Are you awake? Is there anything wrong with your body?" A clear voice sounded beside his ears. A girl in a white and blue short skirt, a white hat, with silver hair and purple eyes stood aside. Akira was stunned for a moment, then quickly replied, "It's no big deal. Thank you for your help. May I ask where this place is?" "This is the treatment room of the Dian Cecht familia. The people of the Astraea familia said that you had no external injuries, but you fainted on the ground. You might have been cursed, so they brought you here." The girl responded.