[1] He began posting videos in February 2020, and markets his character as "a foreigner who is highly educated and fluent in Japanese.

[2] On 5 March Sawa conducted a live distribution on the "SAWAYAN GAMES" channel where all the money thrown was donated to Ukraine.

[3] On 8 March 2022 he released a video of a conversation with politician Taro Kono, in which he referred to Russian invasion of Ukraine.

[4] On 31 March 2022 he held a press conference at the Foreign Correspondents' Club of Japan in Marunouchi, Tokyo, where he shared his thoughts with his family in his home country, which is under military invasion by Russia.

However, at the immigration checkpoint at Los Angeles International Airport, Sava had his passport returned without incident, but Yan was taken to a separate room.