You've Got Mail: A Cautionary Tale - Chapter 2 - Penpals Through the Pigeon Express

Mason was a mercenary, until the day he died on a mission after being betrayed by his unit.

She regards him as an elder, respects him and esteems him; he cherishes her to the core, loves her deeply, and spoils and protects her—Shi Nuan married Song Yansheng, the business legend of T City, and this man was once her fiancé's Second Uncle!One day, Shi Nuan invited friends to her home.Friend: “Nuannuan, Mr. Song takes such good care of you, I'm so envious!”Shi Nuan blushed: “It's all for show, in private he's... quite indifferent to me!”That night, Song Yansheng embraced his little wife, his voice magnetic: “I heard you feel I'm indifferent to you?”Shi Nuan: “...”[Heartwarming true love, deep affections not too late, an uncle-loving story with an eight-year age gap, guaranteed quality. Recommended past works: 'World's Deepest Love', 'First Warm Marriage of the Noble Family', 'First Marriage of the Rich', new book 'Mr. Gu, You're Missing Me!']

Xie Changgeng, the governor of Hexi, married Mu Fulan, the princess of Changsha.

Xie Changgeng, who had not even seen what his bride looked like on their wedding night, finally returned home after more than half a year only to find that she had returned to her parents’ home.

Although very dissatisfied, he could only chase after her.

- Description from Novelupdates

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.