I'm Only One Year Old. What's with This Doting-Wife System?

Good news: Meng Huai is reborn and has bound himself to a System!

Bad news: The System seems to have arrived too early.

Meng Huai looks at his childhood sweetheart bawling in her crib, then at the word "Devoted Husband" in the System's name, and falls silent.

So now he has to live his life over, and start by "protecting his childhood sweetheart"?

System: Host, complete today's mission: If she sheds a single tear, I'll slaughter a city! Don't let your woman cry. Make sure you cherish her.

Meng Huai: What the hell, I'm only one year old too. How am I supposed to cherish her?!