Kansai to Namba then to Yodoyabashi

Are the airport line from Kansai and the subway line to Yodoyabashi at Namba in the same building or is it a hike ?

See https://www.youtube.com/watch?v=jSgaLoNybmU

The Nankai gate and the subway gate at Namba
are apart both horizontally and vertically from each other.
http://www.howto-osaka.com/global/pdf/traffic/station/namba_stmap.pdf

Alternatively you can make two shorter transfers
first at Tengachaya from Nankai to subway
then at the next Dobutsuen-mae
from the Sakaisuji Line (Track 2) to the Midosuji Line (Track 2).

- Tengachaya Station (of Nankai)
http://www.nankai.co.jp/library/traffic/station/pdf/tengachaya.pdf
- Tengachaya Station (of subway)
http://www.kotsu.city.osaka.lg.jp/library/station-guide/K/k20/pdf/stat...
- Dobutsuen-mae Station
http://www.kotsu.city.osaka.lg.jp/library/station-guide/M/m22/pdf/stat...
- Yodoyabashi Station (of subway)
http://www.kotsu.city.osaka.lg.jp/library/station-guide/M/m17/pdf/stat...

- Osaka Subway Route Map
http://www.kotsu.city.osaka.lg.jp/foreign/english/map.html