[General] What anime got you into anime???

My first anime is about 7 years ago forget about the title the story is about aboy he is always see giant robot fighting but no one else cant see it. So one day he went to his girl friend house and no one is inside he went to the basement found this weird chair n exedently trigger it. He woke up in the house but it look like the house is abonden fr a long time. He went out and see a giant robot fight. One of the robot got hit n fall. He went to that robot n see a wounded girl inside so he trys to save that girl and endup activating the robot the best part he is the first man can ever operate it. I really need help to anyone who knows this anime iam open to any sugestio.