With his mother and wife following him throughout the final round, Asaji, who earned his spot by topping the Monday Qualifiers, kept his composure and maintained his overnight lead to eventually close with a one-over-par 72.
Asaji's winning total of three-under-par 281 also earned him a spot at The 148th Open which will be held at Royal Portrush, Northern Ireland in July.
Micah Lauren Shin of the USA tried to surmount a late charge but dropped three shots in his inward-nine and had to settle for a share of second place with Japanese amateur Ren Yonezawa.
New Zealand's Danzel Ieremia and Korea's Y E Yang were tied for fourth while Zimbabwean Scott Vincent secured another top-10 by sharing sixth place with Korea's Dongkyu Jang.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)