Born and raised in Yamanashi, Asahara played rugby through school and university. He signed up with the Toshiba Brave Lupus in 2010 and has been a regular with them ever since.[2][4]
Super Rugby career
Asahara was selected as a member of the first ever Sunwolves squad ahead of the 2016 Super Rugby season. He played 14 matches in their debut campaign.[2][5]
International
Asahara played 5 matches for Japan in 2013, making his debut for the Brave Blossoms on 20 April in a match against the Philippines. He has not played for his country since June 2013.[1]