♂ m 17

♀ f 27

The eldest of the Kuragano family and is also the mother figure. She is a quiet, gentle, and cheerful person who is popular at the school as a nurse teacher. She became a nurse's teacher so that she could properly watch her younger brother (the protagonist) grow up. At the school, she calls her bro... read more

The eldest of the Kuragano family and is also the mother figure. She is a quiet, gentle, and cheerful person who is popular at the school as a nurse teacher. She became a nurse's teacher so that she could properly watch her younger brother (the protagonist) grow up. At the school, she calls her brother to the infirmary after HR in the morning to check on his condition. She is also a licensed nutritionist and a good cook. She is shocked to see that the protagonist's height is slightly lower than the average, so she has a family meeting and decides to breastfeed the protagonist. "Oh... you don't look well, are you okay?. Do you want to drink milk from your sister's tits?"

♀ f 18

She is the third daughter of the Kuragano family. She is a senior at the school and is one year older than Shougo She is a well-behaved and an earnest honor student. She's a prodigy and always gets top grades at school. All of her academic skills were cultivated in order to raise his brother's aca... read more

She is the third daughter of the Kuragano family. She is a senior at the school and is one year older than Shougo She is a well-behaved and an earnest honor student. She's a prodigy and always gets top grades at school. All of her academic skills were cultivated in order to raise his brother's academic skills and teach him. When she's studying for an exam, she wants to be alone with her brother; since she realized that his grades grew steadily and he became more enthusiastic about his studies. Her eyesight is not very good, so she wears glasses when she studies. Misora is basically a common-sense person, at first, she was confused about the act of breastfeeding her brother, but her motherhood awakens and she becomes absorbed in it. "I'm embarrassed to give you my titties... but it cannot be helped"

♀ f 25

She is the second daughter of the Kuragano family She is a cool beauty on the sidelines and is very popular with her students. Basically, she's a quiet lady who doesn't talk much, she can be herself with Shougo. In gym class, she takes the initiative to form a duo with her younger brother and trie... read more

She is the second daughter of the Kuragano family She is a cool beauty on the sidelines and is very popular with her students. Basically, she's a quiet lady who doesn't talk much, she can be herself with Shougo. In gym class, she takes the initiative to form a duo with her younger brother and tries to get close to him. She likes to move her body and is good at sports. She became a physical education teacher to coach her brother in sports. The statement that "breast milk is nourishing" was made without thinking too deeply about it. Niina is secretly pleased that she will have more skin-to-skin contact with her brother "Take a lot of food... and grow up!"

♀ f 18

A senior at the school, one year above Shougo. She's also the most popular girl among the students of her class. Unlike her other 3 sisters, she is a free-spirited girl with an easygoing temperament. However, she is a genius, her grades are really high. She´s willing to have sex with her brother a... read more

A senior at the school, one year above Shougo. She's also the most popular girl among the students of her class. Unlike her other 3 sisters, she is a free-spirited girl with an easygoing temperament. However, she is a genius, her grades are really high. She´s willing to have sex with her brother and she's not ashamed to admit it publicly, a complete brocon just like her other sisters. In order to get his brother to take control of himself, she seduces him every time showing him her breasts. After deciding to breastfeed Shougo, she was very happy because she will finally make her most secret fantasies come true "Do you like my breasts...? Ahhhhh♪ It feels good to breastfeed you Shougo♪"