Someone's reeeeeeeally on the right track here, but forgetting one critical piece of reasoning! Anyway,
Shkirmikeu --> Shameimaru
Shameirmaru is the nice answer here and we can theorize a couple of rules to get there. The first is that every I is replaced with an M, and every M is replaced with an I. The same goes for R and E. K is used in place of A, but we don't know if they're swapped yet. This will be verified in following names. H doesn't appear anywhere else, as do a couple other letters. Best to assume that it stays the same as it fits.
Akgmykik --> Kagiyama
This result plus Shameimaru in the previous one works well since we get a couple of the results from this one with the I's and M's, plus the K's and A's. We only had half of the K-A story in the first one. Hence, this one verifies that every K is replaced with an A and vice versa. Same goes with I and M. We can assume G isn't any different since it isn't featured anywhere else. We can now apply these rules to the others.
Imnkimtsu --> Minamitsu
Works well with the rules thus far. We'll need to go onto other ones to verify that the T stays the same everywhere, but things would work out here if they didn't. We also know that for this and Shameimaru to work, S and U can't change.
Toekikeu --> Toramaru
This is the one that verifies that every R is replaced with an E and vice versa. We also get that T isn't anything different based on this and Minamitsu.
Akimshmekskwk --> Kamishirasawa
Lots of rule application here. W isn't featured anywhere else, so we can assume it stays the same as it would have to be different here for it to be different at all. H confirmed for being H.
Emakao --> Rikako
Finishing up we had confirmed. Finally, we confirm that O doesn't change either and apply it to Toramaru.
So to summarize,
All I's and M's are swapped with each other.
All R's and E's are swapped with each other.
All A's and K's are swapped with each other.
No other letters are changed.
I =/= M because it would be just as easy to write Akiishiekskwk and have it make no sense. When there is an I, it must be replaced with an M. When there is an M, it must be replaced with an I. Same goes for the other two combinations.
Anyway, right or not, I'll try to be around here so I do all of the work myself instead of leeching off of someone else. :V