Proposal : Update Series Romelia Senki japanese name

Proposal details

This proposal will make the following change(s):

Update the japanese name of the series Romelia Senki

Change the japanese name from Unknown to ロメリア戦記 ～魔王を倒した後も人類やばそうだから軍隊組織した～

Based on the following reason: Missing

With the source: https://myanimelist.net/manga/166740/Romelia_Senki__Maou_wo_Taoshita_Ato_mo_Jinrui_Yabasou_dakara_Guntai_Soshiki_shita