The Fighting Style/Martial Art that Marilyn Sue Dajie from Akatsuki Blitzkampf is the Northern Chinese Kung Fu Style Piguaquan (Chop-Hanging Fist) aka Piguazhang (Chop-Hanging Palm). The Style Originated in the Cangzhou Prefecture in Hebei Province.
The Style is known it's Palm Techniques. Especially compared to Bajiquan (Baat Git Kyun In Cantonese Hakkyokuken In Japanese). Piguaquan's Power is from the accelerational force of the arms which are often in Rotation.
Piguaquan aka Piguazhang is also known for bein' practiced along with Bajiquan (Baat Git Kyun In Cantonese Hakkyokuken In Japanese).
This Style Of Chinese Kung Fu would make it's appearance in Pop Culture. For example The 1988 Martial Arts Manga Kenji created by Ryuchi Matsuda And Yoshihide Fujiwara.
As well as the 1999 Martial Arts Manga Series Shijō Saikyō No Denshi Ken'ichi aka History's Strongest Disciple Kenichi.
You also got Helena Douglas from Dead Or Alive who's a Practitioner Of Piguaquan aka Piguazhang.
You also got Ling Xiaoyu from Tekken that also practices Piguaquan aka Piguazhang along with Baguazhang.
There's also Pai Chan from Virtua Fighter. Whose style is a mixture of Mizong Yi aka Mizong Louhan Quan (Maih Jung Loh Hon Kyun In Cantonese) And Piguaquan aka Piguazhang.
