Noelle is an energetic angel in training. She shows great affection towards Yuusuke and is determined to become an angel. She often devises ways of taking off on a short runway, the roof of the house, in order to fly which is important on being an angel. She has vowed to marry Yuusuke once she has completed her training to becoming an angel for Yuusuke. At the end of the series, she and Yuusuke show that they love each other very much.     (source : wikipedia)

Yuusuke Kamoshita who is living alone until one day he stumbles across a naked girl in a forest, a very energetic girl named Noelle, then after she knows him better, she wanted to become his angel.. <br>
Noelle and her entire family proceed to move into Yuusuke's very large home and disrupt his life. But as their life goes on, Silky and her minions interfere as the series goes on.

Tomoko Kawakami was a Japanese voice actress. Having graduated from the Toho Gakuen College of Drama and Music, she was affiliated with Production Baobab at the time of her death.

In August 2008, Kawakami was diagnosed with ovarian cancer, which required surgery. During a three-year battle with cancer, most of her ongoing roles were replaced by other voice actresses, although the latter was able to do some voice work until her retirement in the start of the 2010s decade. She died on June 9, 2011 at the age of 41.

Mi Sook Jeong, joined KBS Voice Acting Division in 1984. One of her well known voice acting is Kagome Higurashi.  Although unrelated to anime, she played the voice of Reith in the PS2 game, Magna Carta the Tears of Blood.

I'm Gonna Be An Angel! is the story of Yuusuke Kamoshita who is living alone until he literally stumbles across a naked girl in a forest, a very energetic girl named Noelle who claims she is trying to become an angel. Noelle and her entire family proceed to move into Yuusuke's very large home and disrupt his life. Silky and her minions interfere as the series goes on.<br><br>
(Source: Wikipedia)