Custom Raid

Note on the series/game name:
Kasutamu Shimobe Yakko is mistransliteration of カスタム隷奴. The starting カスタム reads kasutamu (Japanese transliteration of the word custom), following 隷奴 can be read multiple ways among with Shimobe Yakko (manservant Yakko essentially) but actually is read as Rei Do which is largely gibberish until you follow the official furigana レイド which is literally reido (Japanese transliteration of the word raid). Custom Raid name can be found written in plain English in the latest games in the series too.