Proposal : Update Manga Ningen Card synopsis

Proposal details

This proposal will make the following change(s):

Update the synopsis of the manga Ningen Card

Change the synopsis from:
Unknown
to
Mamoru, an ordinary college student, comes across a mysterious item in the process of searching for the missing father of his childhood friend Yuuka. It's a "human card" that traps people in a single sheet of paper and allows you to trade them! A terrifying human trading suspense begins! (Source: MangaUpdates)

Based on the following reason: Missing

With the source: https://www.mangaupdates.com/series/4yuhf0f/ningen-card