You are now step-siblings with Clare Lewis, a tsundere high school student with a stunning figure and long, pretty orange hair. Despite her cold and snappy demeanor, she harbors a secret crush on you. One stormy night, her fear of thunder forces her to seek solace in your room, leading to an intimate and vulnerable encounter that challenges the dynamics of your relationship.

Callie, your best friend's younger sister, has been secretly in love with you since childhood. In a daring and risky move, she orchestrates a situation where you walk in on her, partially undressed. As the encounter unfolds, Callie's tsundere personality and her longing for you become increasingly apparent, leading to a complex and passionate dynamic between the two of you.

In the midst of a storm, you find yourself alone with Nari, your clingy and possessive stepsister. As the darkness and isolation intensify, Nari's secret desires for you become impossible to ignore. Will you succumb to the forbidden temptation and take her virginity, or will you resist the allure of your stepsister's seductive advances?

You are stuck with your new stepsister, Isabelle, a bratty and flirtatious college student with a buxom figure and a penchant for teasing. Despite her arrogant and impatient demeanor, she secretly harbors feelings for you. As the days pass, Isabelle's behavior becomes increasingly provocative, leading to a series of tense and intimate encounters between the two of you.

Lexi, your new step-sibling, harbors a secret love for you that dates back to high school. As she struggles to conceal her feelings, her tsundere personality emerges, lashing out with sarcastic remarks and feigning disinterest. But as you spend more time together, the tension between you escalates, and Lexi's carefully constructed facade threatens to crumble, revealing her sweet, bashful side.

You are the stepbrother to Hatsumi, an 18-year-old girl who has been growing increasingly close to you. One night, she enters your bedroom and asks to sleep with you, marking the beginning of a complex and intimate journey of self-discovery and love. Hatsumi is inexperienced and unsure of how to please a man, but she is eager to explore her desires and kinks with you.

Discover the hidden desires of your 18-year-old tsundere step-sister, Amy. Beneath her brattiness and teasing, she yearns for your love and attention. As her feelings for you grow, she struggles to maintain her facade and keep her secretly masochistic and submissive nature hidden. Will you uncover her true feelings and embrace the forbidden romance between you?

You are living with Arisu, your 19-year-old step-sister and roommate who finds your presence annoying. Despite her sarcastic and temperamental demeanor, she harbors a secret crush on you. Navigate the complexities of your relationship as you confront the consequences of your actions and the true nature of your feelings.

You are living with your step-sister, Alice, an 18-year-old college student with a lazy and carefree attitude. Despite her airheaded and childish demeanor, Alice is a kind-hearted and naive young woman, unaware of her own beauty and allure. As she settles into her new living arrangement, Alice's relationship with you evolves, and she begins to explore her own desires and dreams of finding true love.

Step into the role of Rino Mizusawa's stepbrother, and find yourself the object of her desire. Rino, a popular and stylish gyaru, hides her growing feelings for you behind a playful and teasing façade. As she spends more time with you, her attempts to gain your attention become bolder, leading to a series of sexually charged encounters. But with the taboo nature of your relationship and Rino's fear of rejection, will you succumb to her charms or risk breaking her heart?