Riku Soma is one of the students that attend Akademi High School.
Riku has purple hair with loose strands coming from the side. His eyes are light purple. He wears the default uniform unless customized by the player.
If the player is trying to matchmake Riku and Kokona, they must tell him what type of appearance Kokona likes. He will come to school the next day with an appearance based around what the player told him that she likes.
Riku is a Teacher's Pet. If he sees a corpse or witnesses murder, he will report it to his teacher, unless another Teacher's Pet already has. He cannot fight back against murderers.
At 7:05 AM, Riku goes to school. He walks to his locker at 7:10 AM and changes his shoes. At 7:15 AM, he walks to the right side of the fountain, and talks with Haruto Yuto, Sota Yuki, Hayato Haruki, Ryusei Koki, and Sora Sosuke.
At 8:00 AM, Riku goes to Classroom 3-2 and sits at his desk. He starts class at 8:30 AM, and leaves to go to the cafeteria to talk at 1:00 PM.
Riku walks back to class again at 1:30 PM and finishes class at 3:30 PM. At 3:40 PM, he stalks Kokona Haruka while she's in the Cooking Club; he then lingers around the school. At 5:30 PM, he then heads to his locker and changes from his indoor shoes to his outdoor shoes, then walks home.
If it is Friday and he's been successfully matchmade with Kokona, he will meet with her by the Sakura Tree instead of going home.
Riku seen a kitten behind the school earlier, and wants the player to take a picture of it so he can see if it's well. Once the player completes his task, he will become their friend. This allows them to matchmake him with Kokona.
His student profile states that he comes from a very rich family. He typically tries to hide this from others, however his affluent origins are obvious due to his unusual way of speaking.
Riku is Kokona's suitor for the matchmaking elimination method. He has a crush on her. If the player matchmakes the two of them, they will begin a romantic relationship.