MTL - Online Game: Evil Dragon Against The Heaven - Chapter 180 call

Cho Ryu Hyang was good at math from a young age. When he enrolled into the The Theoretical Maths and Martial Arts School, the teacher, Jo Gi Chun, recognized Cho Ryu Hyang’s talent immediately and took him in.

In a world where magic is a science, Siobhan is a genius.But even geniuses need schooling.When Siobhan stumbled into the theft of a priceless magical book, she thought her dreams of becoming the world's most powerful sorcerer were destroyed.But then a mysterious spell changed her life forever...Siobhan is now wearing the body of a strange man and has a new identity—Sebastien. With a new chance for a new start, she allies herself with a local gang—secretly a revolutionary party funding itself through crime. Now, she is bound by vow to repay them in magic and favors. But as Sebastien's reputation begins to bloom, and Siobhan's old enemies still lurk in the shadows, she quickly realizes that the secrets of this world are deeper and darker than she ever could have imagined.Forced to juggle the two sides of her double life, Siobhan is determined to uncover the truth and take control of the name they gave her - The Raven Queen.

A novel revolving around being transported to another world with an op system. The mc spends his day chasing skirts and doing missions to level up. A standard journey to the top with lots of girls from various animes and games with a twist of that gaming feel (hunting mobs, doing missions).

- Description from novelupdates

One day, unfortunate news flew all the way to the Mage’s City. The mage, Solar Xing Ayra’s, entire family had been killed in an accident. Thus, he must now become the next Lord of the Solar family. The childhood home he returned to felt unfamiliar and strange. He barely managed to conduct a funeral with advisors that regarded him with suspicion. After fainting from various stressors, he woke up and… “Hello, Master. Nice to meet you!” ^o^ From now on, I’ll be the cute GM spirit fulfilling Master’s dreams: ‘Adventuring the world!’, ‘Fun estate management!’ I’m so happy to be with Master from now on, yay! “Enter a name ______” … What is this pebble-like spirit that calls me ‘Master’? No matter how you look at it–these level-up quests and these system windows…they were similar to a game’s user interface from his previous life. What is this… thing that seems more suited to modern civilization? Reminiscing on the games he had longed to play, Ayra worked hard on the quests. And, slowly, he also began exploring the territory. However, the territory… [D-234 days until the fall of the Solar estate.] “There are 234 days left till ruin…?” Alright, let’s start with the coronation ceremony. Things will work out somehow.