Saikin, Imouto no Yousu ga Chotto Okashiinda ga.
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Episodes (12)
- 1EP 1
Yūya reacts to Mitsuki's hospital embrace and subsequent chastity belt ordeal with Hiyori.
Jan 4, 2014Yūya Kanzaki is startled when his new stepsister Mitsuki collapses and later embraces him as her brother before kicking him out. After resting at home, she discovers a chastity belt on her body. Hiyori, claiming to be an angel, possesses Mitsuki’s body, causing the real Mitsuki to float outside. Hiyori masturbates, forcing Mitsuki back into her body, which triggers an orgasm that partially fills a heart mechanism on the belt. Upset about the device, Mitsuki demands removal instructions. Hiyori explains a button releases the crotch piece for only three minutes, requiring an hour to reset. Interrupted by Mitsuki’s urgent need to use the bathroom, Hiyori leaves her trapped. Mitsuki suffers for an hour, worrying her aunt and Yūya, before finally gaining relief.
- 2EP 2
Mitsuki navigates time travel and bathroom traps to help Hiyori cross over.
Jan 11, 2014Mitsuki questions Hiyori about her inability to cross over, leading to a vision where Hiyori explains she died without confessing to Yūya. To cross over, Hiyori requires intimate acts that fill a heart on a chastity belt, adding steps toward a golden gate. Mitsuki initially dismisses this as a dream but later allows Hiyori to possess her during gym class to attract Yūya’s attention. Hiyori warns that failing to fill the heart will cause both to die and go to hell. Embarrassment strikes when Yūya mistakenly takes Mitsuki to the nurse, causing her to wet herself. Meanwhile, Yūya suffers a bathroom lock failure at home. Mitsuki accidentally sees him naked, and when her own bathroom door breaks, Hiyori possesses Mitsuki to trap Yūya inside, forcing them together to progress the heart meter.
- 3EP 3
Yūya and Mitsuki bond while Yukina and Hiyori create romantic tension and embarrassment.
Jan 18, 2014Trapped in a bathroom, Yūya shares his shirt with Mitsuki, leading to emotional bonding that partially refills her heart belt. Yukina rescues them and introduces herself as Yūya’s childhood friend, upsetting Mitsuki. Later, Hiyori warns Mitsuki about Yukina’s advances, claiming jealousy drains the heart’s contents. Hiyori possesses Mitsuki to flirt with Yūya, forcing him to admit he likes both large and small breasts, which embarrasses Mitsuki but refills her heart. The next day, an accidental spill reveals Mitsuki’s panties to Yūya. She refuses to walk to school with them, denying Hiyori’s claim that she is jealous. At school, Yūya remains embarrassed by the incident while Mitsuki realizes she forgot to put her washed panties back on. Ayaka invites her to lunch, but Mitsuki declines due to wind. Yukina attempts to help, but a gust exposes Mitsuki’s rear to Yūya, causing him to fall and hit his head. The episode concludes with Mitsuki finding anonymous new panties on her desk, while Yūya suffers from memory loss in the nurse’s office.
- 4EP 4
Hiyori Possesses Mitsuki to Impress Yūya Before Returning to Normal
Jan 25, 2014Hiyori possesses Mitsuki to act as the ideal sister for Yūya, surprising him with breakfast and gentle behavior that makes him smile. Mitsuki observes this, initially dismissing it as flattery, but feels touched when Yūya encourages Hiyori to be herself. During a rock-skipping outing, Hiyori claims to be the friend who called Yūya "big brother," causing confusion when she cannot return to her body. That night, Hiyori uses the thunder as an excuse to sleep in Yūya's room, but his advice to be authentic moves Mitsuki, allowing her to reclaim her body. Embarrassed by the events, Mitsuki kicks Yūya out and resolves to act naturally as he suggested.
- 5EP 5
Mitsuki and Yūya visit a pool where a mysterious belt causes embarrassment and possession.
Feb 2, 2014Ayaka invites Mitsuki and Yūya to a fitness pool center, where they meet Yukina, Shōtarō, and Moa. Mitsuki refuses to enter the water due to embarrassment over her belt. Neko explains her father owns the facility and offered free entry for feedback. After Yūya falls into the pool, Mitsuki jumps in to help but suffers a leg cramp. Yūya carries her to a private spot, unaware her swimsuit has fallen off. When he discovers her belt, he kisses her to hide it from passersby. Later, Yūya gives her his swimsuit. The next day, a sick Mitsuki attempts to cut off the belt but collapses. Hiyori possesses Mitsuki and approaches Yūya, revealing herself when he asks who she is.
- 6EP 6
Yūya misunderstands Mitsuki's belt while Hiyori possesses her body
Feb 9, 2014Hiyori collapses on Yūya, revealing Mitsuki who calls him an idiot before fainting again. Mitsuki rests in bed while Yūya seeks advice from Yukina, who wears a belt he mistakenly calls scary panties. Later, Hiyori, possessing Mitsuki, attempts to initiate sex with Yūya, fearing she cannot reach heaven. She enters his room half-naked, but the real Mitsuki wakes up and protests. Hiyori returns Mitsuki to her body, and Yūya expresses acceptance of her attraction to girls. He worries about her belt, leading Mitsuki to question his strange conclusions. Yūya tells her to be careful with the accessory, cheering Mitsuki up. She kicks him out due to his presence while she is undressed. The episode concludes with Yūya reading a note from Mitsuki stating she is returning to school.
- 7EP 7
Mitsuki explores school clubs with Hiyori possessing her, leading to comedic rejections and a dream sequence involving a play.
Feb 16, 2014Ayaka persuades Mitsuki to review school clubs while Hiyori reluctantly agrees to observe without joining. Mitsuki tries out for tennis and soccer, with Hiyori possessing her to impress captains who urge her to join, but Mitsuki declines due to excessive paperwork. Interest shifts to kendo when Yukina appears, yet Hiyori rejects the match because of the men's odor, resulting in Mitsuki being knocked out by Yukina while Yūya checks on her. Mitsuki then joins the theater club, where Neko rehearses a play featuring Yūya choosing between a girlfriend and a step-sister. During the performance, Mitsuki replaces Moa on stage, delivering a line about not pursuing someone who is not a little sister. Moa trips, exposing her backside, and Mitsuki wakes from the dream only to receive a text from Ayaka that leaves her shocked.
- 8EP 8
Yūya and Mitsuki share an aquarium date while Hiyori possesses her body.
Feb 23, 2014Yūya receives aquarium tickets from Neko and invites Mitsuki, who is possessed by Hiyori. At the venue, Hiyori enjoys the outing while Mitsuki questions the date-like nature of the trip. Embarrassment and arousal cause her heart to fill, intensifying Hiyori’s sensations. Mitsuki reveals her loneliness after her mother left, while Yūya denies knowing Hiyori. During a doctor fish foot bath, Yūya’s insistence leads to another orgasm, further connecting their hearts. Mitsuki is upset he ignored her discomfort but forgives him after an apology. Yūya lights the house to welcome her home. Hiyori notes their synchronization ratio increased, hinting at Mitsuki’s growing feelings, which she denies.
- 9EP 9
Nanami leaves a kotatsu for Mitsuki, who studies with Hiyori before Yūya corrects her math while sleeping.
Mar 2, 2014Nanami leaves a kotatsu at home before work. Mitsuki studies math inside it but falls asleep, joined by Hiyori. Yūya finds them, assumes Hiyori is a friend, and corrects Mitsuki’s wrong answers under the kotatsu before sleeping. Mitsuki wakes to find Yūya holding her; she slaps him unsuccessfully, dismisses him as an airhead, but appreciates the corrected work. She thanks him but is confused when he asks about her friend. The next day, Mitsuki makes a bento, prompting Hiyori to note her changed behavior. Hiyori compares it to a newlywed, which Mitsuki denies. Hiyori possesses Mitsuki to check Yūya’s bag, finding a second bento. Mitsuki realizes her lunch is full while the other is empty, upsetting her. Yukina visits with a bento, sees Mitsuki’s distress, and offers to cook dinner. Hiyori possesses Mitsuki to accept, suspecting a misunderstanding. Yukina reveals Yūya was saving Mitsuki’s lunch, apologizes, and stops making bento. Yukina spills dressing on Mitsuki, who goes to bathe. Yūya exits the bath, sees her, and gets slapped again. Yūya explains he saved the lunch. Yukina thinks they are far from love. Mitsuki stands on heaven’s steps with Hiyori, who is happy to be closer to the gate.
- 10EP 10
Mitsuki seeks peace but faces confusion over chastity belt changes and Yūya's unexpected kindness.
Mar 9, 2014Mitsuki asks Hiyori to modify her chastity belt, but Hiyori refuses, leading to an argument where Mitsuki’s comments about Hiyori’s lack of effort cause her to leave. Mitsuki initially enjoys her solitude but feels guilty by dinner. Yūya’s kindness makes her blush, confusing her as Hiyori is absent. When Mitsuki rests her head on the table, Yūya performs the Heimlich Maneuver, accidentally causing her to orgasm. Embarrassed, she slaps him. In the bathroom, Mitsuki wonders about her feelings for Yūya but denies love. She discovers the chastity belt is missing and panics, fearing Hiyori has crossed over. Yūya helps her search, and they find Hiyori at the location where Mitsuki first collapsed. Hiyori reveals she made a new, more revealing belt design as Mitsuki wished, and it never truly disappeared. Mitsuki reconciles with Hiyori but is mortified by the new design. Meanwhile, Yūya searches a convenience store for a girl with a big ribbon and wings.
- 11EP 11
Mitsuki and Yūya visit a hot spring where Yukina causes romantic tension and jealousy.
Mar 16, 2014Mitsuki wins a two-person hot spring trip for herself and Yūya using four tickets in the shopping district. Upon arrival, they find Shōtarō, Moa, Yukina, Ayaka, Neko, Nanami, and Hiyori also present. Yūya offers to carry bags, but Mitsuki declines, feeling uneasy when he offers to help Yukina. She attributes this sensation to Hiyori’s connected feelings rather than jealousy. Yūya gives her Dorayaki to cheer her up, assuming hunger is the cause. In the bath, Mitsuki refuses to undress due to a belt, while Neko wears a swimsuit. Yukina shares stories about Yūya’s childhood, deepening Mitsuki’s distress. Hiyori possesses Mitsuki to confront Yūya, leading to a misunderstanding when Yukina falls on him. Yūya explains the accident to Mitsuki, comforting her. Exhausted by stress, she rests in the game room, where Yukina bites her Dorayaki, claiming she will not lose. Neko observes this dynamic and decides to intervene.
- 12EP 12
Yūya undergoes hypnosis revealing feelings while Hiyori returns to guide Mitsuki through a golden gate
Mar 23, 2014Neko places Yūya under hypnosis, causing him to confess Mitsuki is cute and grope Yukina, who slaps him. After Neko explains the effect, Yūya develops a fever. Yukina visits, noting she knew about Hiyori, while Mitsuki rejects Hiyori’s advances due to his illness. Yūya later bursts into Mitsuki’s room, criticizing her underwear, which leads to her embarrassment. Hiyori then appears, leading Mitsuki through a golden gate to a floating island marked "2F." Hiyori disappears, wishing to be reborn as their child, and returns Mitsuki’s belt. The next day, Mitsuki calls Yūya "Oniichan." Hiyori reappears, placing the belt back on Mitsuki and explaining it is now 30% more sensitive, causing Mitsuki to cry out in embarrassment as the episode concludes.
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Frequently asked questions
- How many episodes does Saikin, Imouto no Yousu ga Chotto Okashiinda ga. have?
- Saikin, Imouto no Yousu ga Chotto Okashiinda ga. has 12 episodes.
- When did Saikin, Imouto no Yousu ga Chotto Okashiinda ga. come out?
- Saikin, Imouto no Yousu ga Chotto Okashiinda ga. came out in 2014.
- Which studio made Saikin, Imouto no Yousu ga Chotto Okashiinda ga.?
- Saikin, Imouto no Yousu ga Chotto Okashiinda ga. was produced by project No.9.
- Who directed Saikin, Imouto no Yousu ga Chotto Okashiinda ga.?
- Saikin, Imouto no Yousu ga Chotto Okashiinda ga. was directed by Satoshi Motoyama.
- Is Saikin, Imouto no Yousu ga Chotto Okashiinda ga. finished?
- Current status of Saikin, Imouto no Yousu ga Chotto Okashiinda ga.: Finished.