Reincarnation – The Divine Doctor and Stay-at-home Dad 2 - Chapter 52

10 years ago, after “the Gate” that connected the real world with the monster world opened, some of the ordinary, everyday people received the power to hunt monsters within the Gate. They are known as “Hunters”.

The nascent Chaos had just been carved out, and the barren void welcomed the souls from the Otherworld.As the first soul in the Chaos World, Laine automatically became the God of Spirituality.However, divine power stems from Divine Power, and the existence of spirituality was insignificant; thus, the newly born Laine was extremely weak.With no other choice, to avoid being overturned by the torrents of fate, Laine had to rely on himself.He carved out realms, and birthed lives belonging solely to spirituality.He created sequences, scattering the steps to deification.He wove the Magic Net, enveloping the sky, the oceans, and the land.When the bell of dusk sounded, I raised my divine seat and proclaimed to all beings from the pinnacle of the Spirit Realm:There are two facets to the world, the material and the spiritual.The material belongs to the gods, and the spiritual belongs to me, such is the ultimate truth of all things.

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

The story is about a man whose compulsive tendencies make it impossible for him to keep a job, and a young girl who skips school and loves insects. The two meet, come to support each other in reintegrating into society, and fall in love. There’s a problem, however: namely, the parasites in their heads.