SUGOCA is a Japanese rechargeable contactless smart card ticketing system for public transport in and around Fukuoka Prefecture. The Kyushu Railway Company introduced the system on March 1, 2009. The name is an acronym of "Smart Urban GOing CArd", while sugoka (凄か) in the local Kyūshū dialect means "great". Like other electronic fare collection systems in Japan, the card uses RFID technology developed by Sony Corporation, known as FeliCa. American graphic artist Rodney Greenblat designed its official mascot, a frog with a clock.

Mukainoharu Station is a passenger railway station located in Hasama neighborhood of the city of Yufu, Ōita Prefecture, Japan, operated by JR Kyushu.