Proposal : Update Manga Imouto ni Konyakusha wo Yuzure to Iwaremashita: Saikyou no Ryuu ni Kiniirarete Masaka no Oukoku Nottori? themes

Proposal details

This proposal will make the following change(s):

Update the themes of the manga Imouto ni Konyakusha wo Yuzure to Iwaremashita: Saikyou no Ryuu ni Kiniirarete Masaka no Oukoku Nottori?

Change the themes from :
Unknown
to
Historical, Magic, Mythology, Reverse Harem

Based on the following reason: Missing