There could be many authors out there. It might be an amateur writer who is a big fan of both Harry Potter and Greek mythology. They just had this creative idea to combine the two and wrote this fanfiction.
There's a chance it was written by a group of writers too. They might have brainstormed together, thinking about how to blend the two different universes. Each member could have contributed different ideas, like one focusing on the character of Hera, another on how Harry would react to being saved by a Greek goddess. So it's hard to say exactly who the author is without more research.
Chapter 419, "Survival of the Fittest, Only the Strong Survive", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Soon, these two leaderboards were also synchronized to Weibo in real...
Chapter 645, "Without Luck, You Are Nothing!", is the clearest early answer because it turns Gu Yu's situation into a concrete plot event.
Chapter 476, "Make a feint to the east but attack in the west, take something out of a bag effortlessly", is the clearest early answer because the buildup finally cashes out in a real clash. Early on, A long half hour had passed, yet their trap hadn't even attracted a....
Chapter 584, "The Wealthy Young Master Renounces Worldly Life for Love", is the clearest early answer because it turns Bai Lu's situation into a concrete plot event. The chapter gives readers a real answer by opening on There wasn't a mirror on the small boat.
Chapter 703, "Slap Oneself", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event. The chapter gives readers a real answer by opening on Wu Daoshan quietly raised his head to size up Zhao Lang, and sure...
Chapter 642, "Congratulations to Qi Tianyu, Points Increased by 10!", is the clearest early answer because it turns Mrs's situation into a concrete plot event. The chapter turns that into something concrete by moving from We'll be the first to catch the plane, then we head straight to party!
Chapter 408, "You Can't Be on the Same Team!", is the clearest early answer because it turns Flash Change's situation into a concrete plot event. The chapter gives readers a real answer by opening on Zheng Xun fell silent after he understood the situation.
Chapter 509, "Don't Cry Funeral Until Someone Dies", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Because of the commotion from the night before, Jiang Li had...
Chapter 476, "Make a feint to the east but attack in the west, take something out of a bag effortlessly", is the clearest early answer because Make gets a payoff that changes the stakes.
Chapter 396, "The Shang Family Now Follows My Orders", is the clearest early answer because it turns Shang Shaojing's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Doomsday Beehive" featured a male supporting character who was...