When a ditzy genie sends Ranma into Evangelion (and creates a manga named "Shinji ½" in the Eva universe as a side-effect), various humorous changes start occurring.

One such change results in an angel turning various people including Kensuke Aida into Asuka lookalikes. The others aren't even mentioned enough to merit a "trivial" but Kensuke has been covered enough to be one of the four main subplots. The outfit he chooses while buying new clothes for his female body makes him resemble Fio Germi from the Metal Slug series of games.

...unfortunately, his screen time falls just short of meriting a "major" as it seems Kestral wants to focus more on the subplots which develop characters through potentially world-shattering levels of comedy.