ループ7回目の悪役令嬢は、元敵国で自由気ままな花嫁生活を満喫する 6 (light novel)

MARITIME MARITAL MAYHEM! Rishe has been utterly restless since her heart-pounding kiss with Arnold, but she hardly has time for distractions. Under the pretense of procuring her wedding dress, the two visit a bustling port town--only to witness a kidnapping by pirates! Then a familiar figure from Rishe's past resurfaces, looking to dispatch the pirate menace. If Rishe wants to help take down the marauders and prevent Arnold from gaining a valuable war weapon, she'll have to reinvent herself as pirate bait... But what's this about Arnold role-playing as her servant for the job?!