長州五傑--ちょうしゅうごけつ--
were members of the Choushuu clan who studied in England from 1863 at University College London. noteworthy is that at that time leaving Japan was still illegal under the policy of Japan's isolation.
I came across of this bit of historical information in the manga. 5 very dashing young Japanese men traveling to England. They've got to wear European clothes and they look very smart in it )))))
by ユキムラ (Yukimura) - artist, 五十嵐 匠 (IGARASHI Takumi ) - author.