Well, Kashima is most likely to become either a rape victim, a nympho or semen demon in those books when Shigure, Hibiki/Bep does feel to get a lot more vanilla than that and Ushio.... We all know about how Ushio was since the start already.
Yeah. I haven't seen a single vanilla doujing about Kashima.
The one made by Enosan/Enokiya is vanilla, but even though the cover is of Kashima, she's actually also sharing the book contents with Mutsu Kai Ni, Atago and Takao.
there are wholesome Kashima doujin even when she just debuted but ehhh Pampernickel's Kashima doujins isnt that bad so is Xe's
ok let's see SHigunyan's 鹿島ママに甘えたい Satol's 鹿島の奉仕事情 Awayume's 甘あま鹿島 since the stories are linked with Haruna and Suzuya one better has to read those doujins as well then read ぐうたら鈴谷の招かれざる客 Pumpernickel's 頑張る鹿島さんをHで癒す話 this is a 2 parter so... Motomiya Mitsuki's doujins Kyougoku Shin's ウチの鹿島は世界一可愛い。and 私、提督さんのお嫁さんですから♪ Takayaki's 鹿島の特製手ほどき一週間
these are the doujins that have piqued my interest when it comes to Kashima