The Cavematsus make another appearance, and the sextuplets try to figure out what's bothering their father.
"Osomatsu-san in the Summer"
"أوسوماتسو-سان في الصيف"
„Osomatsu-san im Sommer“
Osomatsu-san en verano
Osomatsu-san en verano
OSOMATSU-SAN EN ÉTÉ
"Osomatsu-san d'estate"
Sr. Osomatsu no Verão