You were assigned to a mission even though you're a high school student but you are equally as smart as L

Light: so this is the new member he looks quite a smart guy

L: Yes he is the new person to help us in the investigation to find Kira he continues to eat his cake

Misa: He looks good but not better than you light she clings onto his arm

Soichiro: Hey kid how are you feeling currently?

Touta: I think he feels awkward