SSS-Class Overlord: My Harem Rules the Realms (18+) - Chapter 80: Start of the Battle.

A part-time job contract. He became the cold CEO’s imitation boyfriend. He merely wanted to earn a few small bucks and live a comfortable life, but a pity, he was in constant turmoil since then. Well, life had something else for him despite his wishes.“That… beauty, will there be an increase in wages for conversion from ‘boyfriend’ to ‘husband’?”

- Description from Novelupdates

200 years after the world has ended, the laws of society have long been forgotten.

When the admissions office of Witch Academy called, I was stunned—I had been accepted into a school I never imagined I could touch.Yes, I am a boy and it is an all-girls’ academy, but they did not mind, so I saw no reason to object. I had applied secretly, without telling my family, just to take a chance.But as soon as those striking seniors greeted us newcomers—pressing every boy against the wall with a knowing smile—I realized things were about to spin out of control.“Oh, come now, you sweet little freshman,” one of them said smoothly, her voice full of mischief. “Don’t make this difficult for me, your big sis. Swallow this core and transform into a witch like me, alright?”She held the glowing orb before us, half-threatening, half-teasing, almost inviting the new boys to react. It was clear she enjoyed it—the blend of fear and resistance in their expressions. Our unease seemed to be her personal amusement.After all, they only had this opportunity once a year.

Our protagonist was a Mexican who died on a flight, when he woke up he found Apollo who reincarnated him as the grandson of Gaius Octavian Turino (Augustus) the first Roman emperor, having a mission in hand to conquer the New World to save the Roman polytheist world and his existence.