Zefa should have died at the hands of Borsalino, but...
He didn't die. Instead, he transmigrated.
He transmigrated to a post-apocalyptic world overrun by zombies.
Teacher Zefa, who had no idea what zombies were, watched a little girl gnaw on his hand and break her teeth against his Armament Haki.
Little zombie: QAQ
After killing so many zombies, Zefa left a trail of them along the way. The little girl picked up their crystals as snacks, and Zefa ended up with a clingy little tagalong.
Little zombie: "Eat people? You'll lose your teeth! I'm not eating people."
Clinging tightly to her real big shot, the little zombie looked down on the people who still thought she'd eat them.
In the early part, Teacher Zefa is in a zombie apocalypse. Later, he'll transmigrate back, taking his zombie daughter with him.
The story includes all sorts of elements: a System, transmigration, transmigrating into a book, Mary Sue, and being reborn. But the main plot follows Teacher Zefa, so there won't be too much flashy drama... probably.
[Blurb subject to change]
Theme: Healing each other
