Parasite Eve - Kunihiko Maeda

A scietist who resides in the pharmaceutical department at a Japanese university. He is a very competent scientist, but completely indifferent to everything else. When he is engrossed in his research, he sometimes doesn't return home for days.

For this reason, not only his clothes are untidy, but his hair is perpetually uncombed. Naturally he has no luck with women.
After an incident that took place a number of years ago, he was devoted his studies to mitochondria.