Well, depends on whether his daijoubu-desu is a singular term or made up of daijoubu and desu, it might or might not. And it's singular if you regard the whole "daijoubu-desu" as something Haruna says and quote it.
1 week later...I'll have you develop sonars using our dailies for a while.Please leave it to me!!AMMOBAUXDeveloping using reserve resourcesSTEELFUELNo, this is fine.Idea: Yuuji
Artist: Kouji
Kancolle 2-koma Theatre, Part 19Sorry...