This name is supposed to have been applied in consideration of the fact that there were trains coming from the direction of Otsu (the station nearest to the Otsu City Hall is Bessho Station on the Keihan Ishiyama-Sakamoto Line, in Shiga Prefecture).
これは、大津方面から乗り入れてくる列車があるための配慮であると思われる（大津市役所の最寄り駅は京阪石山坂本線別所駅(滋賀県)）。