Getting a Technology System in Modern Day - Chapter 14: Payment invoice

[REVISION][I am currently revising and rewriting the entire storyline of this novel.As a result, it will be temporarily unavailable for reading.Thank you for your patience and understanding]

Caleb Uesugi, a high school boy, accidentally awakens his Succubus blood and is caught between two High-Class Devil leaders, Rias Gremory and Sona Shitori, who desperately want him as a powerful familiar. He stalls, using the competition and their attractive Queens to secretly gain new talents and boost his power through physical intimacy, while dealing with a mysterious foe who leaked his secrets.Tags：Supernatural Romance，Harem，Devil System，School Life，Power Progression-------------Support me and want to read more chapters:patreon.com/Briery

The whole world is subjected to a highly dangerous standardised exam called the Global University Entrance Examination. Answering questions by putting their lives at stake, they would live if they passed the test. Every month the exam will undergo reformation while, occasionally, it is random.

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“Qu Meng’er was born with a silver spoon in her mouth, but her father had tampered with her brakes and ended her life in a car accident.