"It's great (coming back)," he said. "It's nice seeing the fans, being here with the coaches; being here with my family, seeing the rest of my future. The coaches are really nice and the tailgate was really nice. I like it."
And of course, already being committed early allows Day to play without the burden of handling the recruiting grind during his senior year.
"It's great (already being committed)," said Day. "I can help my team out now and not have to worry about where I'm going. I know I'm going to a nice D1 school. It's a good load off my chest."
Day chose Illinois from a final three that also included Ohio State and Michigan. At the end of the day, he saw Illinois as the best opportunity for his future, and a big part of that was the Illinois coaching staff.
"At Illinois, it was the coaches," he said. "They had something about them and about the school that made them more personal to me. They treated me well, and I just liked that about them."
Day is a versatile athlete on both sides of the ball, but his natural position is at cornerback. He'll definitely have a chance to contribute early, but he knows nothing is guaranteed.
"Right now I think they have me at DB," he said. "I'm listed as an athlete still right now, but it really doesn't matter. Whatever they have me at I'm fine with. It would be nice if I could play early, but it's something the coaches haven't promised me."
Day plays all over the field for Hilliard's Darby High School.
"I play cornerback, running back, and a little slot for my team right now," he said. "I play just about everything except lineman."
Darby is off to a hot start at 6-0, but as a leader on his team, Day works hard to keep his team focused and level-headed.
"Right now as a captain I have to try to keep everything in order," he said. "I can't let 6-0 get to our heads. We just have to keep doing what we're doing and stay focused. Our goal right now is to get to the playoffs and make it far in the playoffs."