describing a girl character in a story

Soma, a college student and also an orphan, who is on his way back after finishing his part-time job, plus his college in the morning, made his life feel monotonous. Still, of course, he didn't have any complaints about the situation he is currently in. To distracted his exhausted body and mind, Soma always finding some times to enjoy the web novels. As a person who likes to immerse himself in the world of novels to find some enjoyment, every day at night, he always reads a web novel he has read for years, and it is called Chronicles Saga. *** Chronicles Saga is one of the many web novels that were serialized years ago, and it's already nearing its end game with a couple of final chapters. The story was depicted in an alternate Earth where Magic, Dungeons, Sword, and System exist. It tells the story of a young man who holds high justice in his heart named Leon, who has been chosen as a savior trying to save the world from the incoming disaster in the future by the great Demon Lord. *** Then, an unimaginable thing happened to Soma when he suddenly got transmigrated inside the story he read for years. Not as a protagonist who led the story or a Villain but as a 'Side Character'. Soma was transmigrated inside the body of a young man with the same name. To make things much worse, he is being transmigrated into one of the crucial scenes, which becomes a turning point for one of his favorite Heroines in the novel. Then, one thing led to another as Soma was thrown into multiple events. He discovered that the boy named Soma had an unexpected mysterious background and past coming from a ‘Side Character’ who had no role in the main stories. Follow Soma’s story inside the novel world he transferred into as a Side character that will overthrow the story and the world, with his reliable comrades. *** Author's note: This was My first book. I hope you can enjoy the series I wrote. Also, sorry in advance. English is not my first language so I think you guys would find some misspelled words or grammar mistakes, I hope you can tolerate it. I welcome any suggestion/feedback that will help me grow as an Author.