The first thing that Elliot wanted to do after regaining control over his body was to find Erena. All he wanted to do right now was to clasp Erena in his arms and give her a tight hug. After undergoing the morphing process himself, he had an idea of what Rain must have suffered back then and what more she was just a child when she went through this hell. His heart ached for his Rain.
He wished that one of the benefits of this evolution was to grow up wings gaining the ability to fly so that he could fly to his Erena right now. Nevertheless, he made the use of his newly found ability of speed and got ready at lightening fast speed so that he could see his Rain sooner.
But just as he was about to head towards the door, Happy re-emerged in the room stopping him from taking a step further, his stern voice echoing "Where do you think you are going Elliot?"