Fujita Masato♂

The father of Sanae and Hazuki. Coming home from work one night, he stops for a drink at the local park and spots a strange insect. Foolishly feeding it a bit of booze, it jumps into his mouth and occasionally takes control of his body, forcing him to engage in tentacle sex with his two daugthers, Hazuki and Sanae, as well as his co-worker Masuki, trying to impregnate one or more of them. He fails to realize that his boozing is a very likely trigger due to suffering blackouts, and uses the booze to block out his few memories of the events, perpetuating the cycle.