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.
Nigi's childhood friend and a member of kendo club.
Maeda Toshiie's wife, and adopted mother to Maeda Keiji. She is highly intelligent and is equally skilled in martial arts. (Source: Wikipedia)
A penguin who's always seen accompanying Shouma. He is perpetually hungry, eating anything and everything in reach. He has a vendetta against bugs, particularly cockroaches. He sprays them with bug spray whenever possible. He is sometimes seen spraying things other than bugs, hinting he may just like spraying things.
Age: 5 An orphaned girl who stays with Riquinni. She does not speak much. Shirotsugh initially thought she was a boy. (Sources: animeenglishdubreviews.blogspot.com, Japanese Wikipedia)