Ideas registered at Writer's Guild
What? Writers Guild is for screenplays. Here's their website.
This isn't something I know a lot about since I don't represent screenplays or scripts but I don't think you register ideas, you register the pages. The purpose is to protect your actual work during the hubub of those pitch meetings with Griffin Mill
Starting your "query letter" to me with that tells me two things: you don't know what I represent and you don't know what a literary agency does.
Jill's father, Jerry has recently died in a car crash while her mother, Sarah was driving. Because Jill was very close to Jerry, she blames her mother for her father's death. And now that her mother has 'got religious', Jill is finding herself more and more angry at the peace that Sarah has found. Jill wonders why God doesn't love her. After moving to a new school and making several friends, Jill finds herself making a mistake which may ultimately cost her a decent future. How can anyone love her now? When sister, Anna nearly loses her life, Jill finally reaches out to God, who brings some healing to Jill's family.
Jill's continues her journey with Christ. Her relationship is still healing with her mother but she is surprised at the peace and forgiveness she feels. She is excited to begin working for God to bring others to him and begins to work on friend, Ashley. Ashley is quite boy crazy and doesn't want to attend church until she meets Jill's secret love, Matt. Jill desperately wants to save Ashley, until she discovers that it is not she, but Christ who does the saving. Jill's friend Kelly, ends up leading Ashley to God. Jill struggles with some disappointment, and feels jealousy over Matt.
Jill, still nursing her crush on Matt, begins her senior year. Ashley is no longer interested in Matt. Ashley is still crazy, but now crazy about Christ and begins to woo many kids to church. Jill still struggles with inadequacy because witnessing seems so easy for Ashley. She 'complains' to Matt who rather roughly encourages Jill. Jill and Kelly are still close friends.
This isn't a query letter. This is a recitation of events.