Thermae Romae Collection

Ancient Roman architect Lucius is too serious. His inability to keep up with the fast-moving times costs him his job. When a friend takes the dejected Lucius to the public bathhouse to cheer him up, Lucius accidentally slips through time and resurfaces in a modern-day public bath in Japan. There, he meets aspiring young manga artist Mami, along with others of the "flat-faced clan". Shocked by the many inventive aspects of Japan's bathing culture, Lucius returns to ancient Rome and garners tremendous attention when he implements these novel ideas back in Rome. As he time-slips back and forth between ancient Rome and modern-day Japan, Lucius' reputation as the ingenious, new bath architect begins to grow.

In ancient Rome, bathhouse architect Lucius (Hiroshi Abe) becomes famous with designing the original "thermae" (bathhouse). He receives an order to build a thermae in the colosseum to help gladiators recover from their wounds, but faces difficulties. Thus, Lucius travels again to modern day Japan through the time slip. He meets Manami (Aya Ueto) again, who is now a reporter for a magazine which covers bathroom. With the help of the flat face Japanese tribe, Lucius again designs a new thermae. Meanwhile, Emperor Hadrian (Masachika Ichimura) wants to keep the peace with the thermae, but the Senate wants to extend the land by using force. Emperor Hadrian and the Senate now have a confrontation and Rome becomes divided.