While I'm at the martial arts academy, my wife is cultivating while I enjoy life.

[Many children, many blessings, many female protagonists] + [Slice of life] + [Plot-driven] + [Apocalyptic]
(The score just came out and is rising. This isn't just mindless hype; those who read further say it's good.)
Yang Ding, who transmigrated to a world of high martial arts and originally wanted to just relax, was chosen by the marriage system and married the most beautiful female instructor of the martial arts academy.
"Ding! The 'Get Stronger by Marrying a Wife' system has been activated."
"You have acquired a wife skilled in martial arts, and awakened your martial arts talent."