Panama - English Subtitles 

Sekiguchi Tougo's image song from Odd Taxi, performed by Punpee, Horii Chado as Sekugichi, and Meteor as Yano.
Notice in the 2019 Album track Ya Know! Mega Mix ( • Ya Know! MEGA-MIX - En... ), which plays raps from the series in reverse order, it ends with the sounds of Panama from this track, suggesting Yano and Sekiguchi had probably gone to Panama before the start of the series.