Minato Nagase

Minato Nagase (長瀬 湊) is one of the female protagonists Akaneiro ni Somaru Saka. She is Jun'ichi's younger sister. She is a year younger than he is and attends the same school that he does as a first year high school student. She is capable in all areas of household related work and is proud of it. She also has unique abilities, like listening to the ground to detect the presence of animals, as well as be able to communicate with them.

Jun'ichi Nagase
She has feelings for Jun'ichi. She mentions that she was an adopted sister once, but later says it was a joke. Minato is blood-related to Jun'ichi in the PC game, in the PS2 version she is not related to him, and it is implied that she is not blood-related to Jun'ichi in the anime. In the anime version she ends up with Jun'ichi, in the manga however he doesn't reciprocate her feelings, and ends up with Yuuhi.

Yuuhi Katagiri
She is Minato's future sister-in-law and Jun'ichi's fiancee.she is very close to Minato and helps her protect each other from Jun'ichi's harassment.She also helps and ask Minato how to cook.

She has gray hair,blue eyes and a art of beauty..Minato added a "-san" on her name as gesture.In the last chapter of the manga,Minato tells Yuuhi and Jun'ichi since she will be her sister-in--law,she will be as strict as to her brother.

Yuuhi is a wonderful person,a smart and the woman who is easily hurt as Minato says to Jun'ichi.