A strong family man, he loves his wife Matsu (and adopted nephew Keiji in Sengoku Basara 2) dearly but he doesn't have much for brains and seems to be perpetually famished, often asking Matsu for more food, even though he's had enough. He is also the usual target of Keiji's pranks which often lead him to chase Keiji around the house. ~Source: Wikipedia~
A little girl who stopped speaking after her mother, Dinah, died. Her father is a Topsider. Mana is from Amaurot, a town in Agartha.
An immortal companion of Yuta. She was raised by a group of old women that kept her captive and incapacitated in a hut. They were really mermaids that sought to eat Mana once she reached her adolescence to regain their youth. She travels with Yuta since, and possesses a large sense of loyalty and feelings towards him, but due to her somewhat naive and spoiled nature, she doesn't seem to truly realize that her emotions towards him are possibly love or just simple affection.
The main character in the story. An overall nice guy attending middle (and later high) school who gets caught up in many embarrassing but endearing romantic situations. Although his thoughts on girls can get quite perverted on occasion, his gentleness and kindness, as well as his selflessness at times, is what attracts girls to him. His dream is to make films as a director. While not academically gifted, he has great talent with cinematography that gradually develops as the story progresses.