Utaite Myōri: Sono Ichi (唄ひ手冥利 ～其ノ壱～), also known as A Favor of Duty Part 1, is the first cover album by Japanese singer and songwriter Ringo Sheena, released on May 27, 2002 by Toshiba EMI.

It wasn't clear whether she was going to return to the entertainment world, so Toshiba EMI intended to release her greatest hits album at first to fulfill the number of CDs in the contract term.

Sheena herself said in a TV appearance: "I even thought that I would retire during my maternity leave," but she ended up deciding against that plan, so this cover album was released as a compromise.

The album consists of songs originally written by musicians that influenced Sheena until that point.

Sheena was in charge of the photographs and illustrations in the booklet, and she designed the lettering with Ryosuke Nagaoka (Ukigmo).