Genshin Asōgi

Genshin Asōgi was a Japanese exchange student along with Yūjin Mikotoba and Seishirou Jigoku 10 years before Ryūnosuke Naruhodō's arrival in London.

Time in London
During Genshin's time in London, Hart Vortex pinned the murders by the Professor on Genshin after Genshin found out Vortex was blackmailing Klimt van Zieks due to Zieks's murders. Afterwards, Genshin was found guilty of the murders and was sentenced to death. However, he was alive when he was buried, and after rising from his grave, Vortex forced Seishirou Jigoku to kill Genshin.