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Of course you ask. :3
薄桜鬼 reads as Hakuouki (litt. Demon of the fleeting blossom/Haku Sakura Oni) and is the title of the series my theme is from. It is also the nickname of the character, Hijikata Toshizou (土方 歳三), in my theme, who was the vice commander (副長) of the Shinsengumi (新選組).
And lastly おろ? translitterates as "oro?", which is Kenshin's (Rurouni Kenshin) catchphrase of some sorts (translates like "HUH?"). When I changed my username to Kotowari, I completed my transformation with a Kenshin theme (my username was inspired by that series). Hence the "oro?". I never bothered to change it. :3
(Kenshin and Hijikata lived in the same time period. :'3 although one is semi-fictional, and the other completely based on a real person).