A five-time league home run champion, he was one of the first true sluggers of Japanese professional baseball — despite being only 5'7" and 171 lbs.

[2] Aota made his professional debut at age 17 in 1942 with the Tokyo Kyojin of the Japanese Baseball League (JBL).

Upon joining the Yomiuri Giants (the renamed Tokyo Kyojin) in 1948, Aota became one of the league's top home run hitters.

He hit a home run in the 1951 Japan Series, when the Giants defeated the Nankai Hawks, 4 games to 2 for their first NPB championship.

Aota then became a coach, but was forced into retirement from the Yomiuri Giants in 1980 after being quoted saying something controversial in a Japanese tabloid.