Clues

Unfortunately for Madeleine, she could only smile bitterly at these jokes and fully embrace her "big sister teaching little brother" role, or else she would expose Dyon. Luckily, the assumed age gap wasn't too large.

Many speculated Dyon probably entered the tower around 14 to 16 years old, which would explain him not having entered the saint realms yet. Which meant that by now he would be around 27 to 29 or so years old. Madeleine had just turned 34 not too long ago, which let them know that she probably married Dyon when she was around 20 or 21.

Such a thing wasn't too rare in the martial world and often happened even when the gender roles were flipped. So, aside from a bit of teasing, no one looked down on Madeleine.

"Don't worry, though." Madeleine continued with a knowing smile. "This little husband of mine is quite a genius and bred an army of his own from a young age. Those who you're about to see are his Demon Generals!"