Tonegawa attends a class reunion where he hopes to see what's become of the classmates he always held in contempt. Meanwhile, Ootsuki's latest excursion is threatened when he gets unexpectedly sick.
The longest river in Japan, Shinanogawa!
!أطول نهر في اليابان، شينانوغاوا
Japans längster Fluss, Shinanogawa!
¡El río más largo de Japón, Shinanogawa!
¡El río más largo de Japón, Shinanogawa!
Le plus grand fleuve du Japon,
le Shinano-gawa !
Il fiume più lungo del Giappone, lo Shinanogawa!
Shinanogawa, o rio mais extenso do Japão!
Самая длинная река Японии, Синано!