Naruto: The Outsider's Resolve - Chapter 1.5 (015):

In my last life, it was difficult to have a child. In this life, I was given three radish heads as soon as I passed it, and there was an extra head. I thought my husband was a rough guy, but I didn’t expect a tough guy to have tenderness.

- Description from novelbuddy

The MC (Minato) is a college student who died in a plane crash and was reincarnated in a fantasy world. He was raised alone in the wilderness by his succubus mother, and now he tries to make his way as an adventurer.

In her past life, Meng Yu couldn't understand why her mother would give the university admission she worked so hard to earn to her younger sister and even sell her off to a remote village as a common wife, just to raise travel funds for her sister.Reborn, Jiang Meng Yu has just escaped from human traffickers, only to be caught by a 'buyer husband'. The fiancé her mother had originally set up for her, whose identity was usurped by her sister, comes to her rescue. She says, 'You saved me, I have nothing to give you as repayment but myself.' Yet when her mother comes, she coolly claps her hands and walks away with her.Captain Gu traps Meng Yu against the wall: 'Flirt with me and then want to run? No way!'Meng Yu resists: 'That was just a temporary measure for revenge.'Captain Gu leans in: 'We've planned everything, let's go with it. I'll help you take your revenge, and you just need to repay the favor.'A slightly silly Meng Yu asks: 'What favor is that?'Captain Gu smirks: 'The life-saving favor that should be repaid with oneself.'Meng Yu: 'Is this fox really the officer I knew in my past life?'

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy