Very simple :)
Skyliner is the fastest LtdExp train, need "LtdExp fee(as Skyliner fare)" plus.
Other and no reserved seat trains are NOT, "base fare(=fare)" only.
http://www.keisei.co.jp/keisei/tetudou/skyliner/us/index.phphttp://www.keisei.co.jp/keisei/tetudou/skyliner/us/fares/index.phpAnd,
Google Map cannot select about using "LtdExp" or not, always shows "fastest" route.
HyperDia just cannot show the map w/route, but smart as multi search functions.
In yr case, if no need Skyliner, this is the answer.
http://www.hyperdia.com/en/cgi/en/search.html?dep_node=NARITA%20AIRPOR...Change date and dep stn(T1 or T2) then click search button again at page bottom.
NRT has 3 terminals T1 to T3, but rail sation is only T1 and T2, no T3. (See also the NRT web)
Transfering at Aoto :
https://www.keisei.co.jp/keisei/tetudou/stationmap/index.phpDownload station map(PDF).
Jump to "Keisei Main LineEHigashi-Narita LineENarita Sky Access Line",
then select "Aoto", finally click "flag" of US(=EN) icon.
That 1 min tranfer is very simple, same platform across other side train, in yr case right to left train.
This is not same time, but mostly same, right train goes to Ueno,
left goes Asakusa and more south including Kuramae.
https://youtu.be/CEjmJ_AMEQ8(Skyliner doesn't skip Aoto, mentioned above link of "Keisei")
"Oshiage" is border stn as "Keisei(fr NRT)" and Subway "Toei" Asakusa line,
but no need transfering "through service train" section.
HyperDia just suggest "Railway company" will be changing.
http://www.hyperdia.com/en/help/help_ke.htmlAnd Kurame is some Rapid(skip small stns) trains won't be stopping,
take a Local(all stns stop/slowest) train be careful.
https://en.wikipedia.org/wiki/Toei_Asakusa_Linehttps://en.wikipedia.org/wiki/Kuramae_Stationhttps://www.kotsu.metro.tokyo.jp/subway/stations/kuramae/i/solid.pngIn Tokyo(even including NRT), train announcement Japanese first then EN like this, no worry.
Stn ticket gate and platform train dep info boards,too.
https://youtu.be/Bxuh-GGVXjA (Jump to 9:30)
https://youtu.be/RUuwXT2fk7IThis is one of other Rail compny's in Tokyo one.
https://youtu.be/NyNaXE1uEgkhttps://youtu.be/Tr07rBHALb8https://youtu.be/SPwLeQk_ZR8