The purposes of the present work are to investigate reality and consciousness from a scientific view point and to propose a concept for future work. Extended science explaining all of reality would include consciousness science, biological systems and quantum physics. A holographic model of consciousness of a human being which includes information on the space and time of the whole universe even though it is diluted information, is proposed by reviewing various types of consciousness and biological models with complex systems. In addition to this, an approach for first person's science is described. Consciousness science is also important for psychosomatic medicine since the quality of life and health condition of human beings would be influenced by the consciousness level. An extended unified theory is expected as future scientific-based philosophy.