Bill Watkins/Synopsis

History
Bill is the son of a major in the national army of Ostania who attends Eden Academy as part of Wald Hall. His father brought him up with love and care, also instilling in him the belief that he would be a hero of the national army and should strive to achieve success for the sake of a bright future for their country. Bill is happy to share his father's beliefs and, therefore, constantly strives to become the best in his school.

Stella Star Arc
Prior to the inter-class dodgeball match, a rumor was going around Eden Academy that the MVP of the game would get a Stella Star. Being extremely competent at sports, Bill took the lead for his team and quickly eliminated a lot of the opponents. However, he had trouble hitting Anya Forger as she was able to read his throws. This made him very enraged, and he yelled die at her as he threw the ball at her while she collapsed on the ground. After Damian Desmond protected her from the hit, he was able to eliminate her due to her poor ability at throwing the ball. His class congratulates him on the win and the Stella Star he'll be receiving. However, Henry Henderson informs him that there was never a plan to award a Stella Star and that perhaps he should receive a Tonitrus Bolt for yelling die at another student.

After Anya becomes the first person in their grade to get a Stella Star, she proudly wears it on her uniform while going to school, and Bill is surprised that she got a Star.

WISE Arc
Bill runs to Cecile Hall to warn them about Donna Schlag, mentioning how his own class had already been given multiple Tonitrus Bolts by her. He tells them to run before collapsing to the ground.

Red Circus Arc
Eden's first graders are going to a museum for a cultural experience, and the bus Bill is on has students from both Wald Hall and Cecile Hall. Sitting behind Damian, Bill notices his irritation and tells him there is value in all new experiences and that this is a new opportunity to make new friends. A while later, Damian starts yelling at Anya, making Bill and the other Wald Hall kids remark about how noisy the Cecile Hall students are. Shortly after, the bus goes another direction, and some strangers board inside. After immobilizing the dorm tutor chaperoning the students, the leader, Billy Squire, introduces themselves as terrorists and declares the bus hijacked, scaring Becky and the other children.

Billy walks through the bus with his shotgun, frightening the children. Bill gets up and tells his classmates to calm down. He reminds them that their parents are important people and that help is on the way. Billy points his rifle at him and tells him to be quiet, and the boy quickly shrinks to his seat in fear. Despite this, Bill manages to calm his peers. Billy begins to say that everyone knows how important the children's parents are and calls out children from influential families, referring to Bill as Major Watkins' son. He then menacingly tells them to pray that their parents will use their power to save them. After Becky and Anya throw something out the window, Billy grabs a device and attaches it around Anya's neck. He reveals to the children that it is a bomb and warns that if anyone tries to act against them, he will blow it up.

Billy's revelation that the device on Anya is a bomb shocks all the students, but the girl plops back to her seat and whacks on the bomb, frightening Bill and the others. Sometime later, the children suddenly hear a loud pop, and the bus starts to swerve around. Police surround the bus shortly after, and the children are relieved to see them.

Realizing they have been cornered, Billy grabs some black sheets from his bag, orders the students to cover the windows, and then walks out with Damian to state his demands. When he finishes, both walk back inside, and Damian is embarrassed to have everyone see him like that. Bill cheers him up, saying that while they are still kids, he did a great job keeping it together and that their only hope is to wait for their parents to do something. Damian stares at him for a while and then calls him a 40-year-old grade-schooler, offending Bill. As time passes by, the kids start feeling desperate, getting hungry and thirsty, so Billy allows the police to give supplies to the children, which get delivered by Henry. Inside the bus, the children eat the Blackbell company's emergency food. Damian, Emile, and Ewen talk about its poor flavor, so Bill and Becky tell them not to complain in a situation like this while Billy watches them with a tender look.

After all the kids are saved from the bus, Eden Academy holds an awards ceremony the next day for Bill, Anya, Becky, and Damian. Because of these students' courageous actions during the hijacking crisis, each of them has been rewarded with a Stella Star. Leaving the event, Bill expresses his happiness for earning his first Stella.