Idol Ace(アイドルA(エース)Aidoru Eisu) is a Japanese short manga written by Mitsuru Adachi about a high school girl who wishes to play on the high school baseball team, but can not due to the rules. Her father is the team's coach, and her best friend happens to look very much like her, so she is able to do a swap with him during games and meet her dream. The three chapters were published irregularly in Weekly Young Sunday between 2005 and 2007, and it is unknown if the series will continue. The three chapters were published in Short Program 3 tankōbon.