One day, Shimizu Seiya wakes up in a hospital bed, from his little sisters he learns that he was carried there by an ambulance. As he has no memory of what happened, he asks his little sisters about it, and they answer... "Onii-chan, you had a technobreak..." A technobreak, in other words his heart malfunctioned because of a too long masturbation period, he lost consciousness and was found by his little sisters which saved his life. But the day before he was supposed to be just doing university assignments and he had no memory or intention to masturbate...! Apparently the reason for this was the high amount of energy drinks he drank in order to work overnight. The drink was studied in a laboratory and found to have included substances forbidden by law, and currently was being recovered by police. The drink caused Seiya to become extremely aroused and was unable to to stop masturbating, he continued that overnight until losing consciousness. Apparently the symptoms would eventually disappear and his body will go back to normal. Meanwhile Seiya felt relieved, his little sister gave him a certain item. "It's a chastity belt, Onii-chan." While embarrassed, his little sister continued. "At this rate you won't be able to stop to stop masturbating, so..." "We have decided that we will manage your ejaculation!" These words astounded Seiya and so, his days of having his ejaculation controlled by his cute little sisters began.
Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!! has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
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Name | Characters | Importance | Weight |
---|---|---|---|
Group (4+) Blowjob Engages in (Sexual) | 4 | 2.66 | 4.29 |
Sex with Protagonist Only Engages in (Sexual) | 4 | 1.67 | 2.70 |
Vaginal Masturbation Engages in (Sexual) | 4 | 1.67 | 2.69 |
Sex in Front of an Audience Engages in (Sexual) | 5 | 1.50 | 2.69 |
French Kiss Engages in (Sexual) | 5 | 1.48 | 2.65 |
Duct Tape Bondage Engages in (Sexual) | 1 | 3.72 | 2.58 |
Nipple Teasing Subject of (Sexual) | 4 | 1.57 | 2.52 |
Group (4+) Blowjob Subject of (Sexual) | 1 | 3.64 | 2.52 |
Sex in Water Engages in (Sexual) | 4 | 1.56 | 2.52 |
Pissing on Others Engages in (Sexual) | 2 | 2.27 | 2.49 |
Bathroom Sex Engages in (Sexual) | 5 | 1.39 | 2.48 |
Pissing Subject of (Sexual) | 2 | 2.18 | 2.40 |
Non-blood-related Sister Role | 2 | 2.17 | 2.38 |
Non-blood-related Incest Engages in (Sexual) | 2 | 2.15 | 2.37 |
Sex on Beach Engages in (Sexual) | 2 | 2.15 | 2.36 |
Spoons Subject of (Sexual) | 3 | 1.67 | 2.31 |
Gokkun Engages in (Sexual) | 2 | 2.04 | 2.25 |
Sex on Toilet Engages in (Sexual) | 2 | 2.03 | 2.23 |
Emotional Personality | 2 | 2.01 | 2.21 |
Female Ejaculation Engages in (Sexual) | 4 | 1.36 | 2.19 |
Bukkake Subject of (Sexual) | 4 | 1.35 | 2.17 |
Group Sex of One Male and Several Females Engages in (Sexual) | 5 | 1.17 | 2.10 |
Sensual Biting Engages in (Sexual) | 1 | 3.01 | 2.09 |
Chastity Belt Clothes | 1 | 2.95 | 2.05 |
Sensual Biting Subject of (Sexual) | 1 | 2.95 | 2.05 |
Sex in Public Places Engages in (Sexual) | 4 | 1.26 | 2.03 |
Intercrural Sex Engages in (Sexual) | 2 | 1.84 | 2.03 |
Pink Rotor Subject of (Sexual) | 2 | 1.84 | 2.02 |
Duct Tape Bondage Subject of (Sexual) | 1 | 2.90 | 2.01 |
Deepthroat Engages in (Sexual) | 2 | 1.80 | 1.98 |
Cooking Engages in | 3 | 1.42 | 1.97 |
Twin Boobjob Engages in (Sexual) | 2 | 1.77 | 1.94 |
Teal Eyes | 2 | 1.72 | 1.89 |
Off-The-Shoulder Sweater Clothes | 1 | 2.71 | 1.88 |
Tominagi Subject of (Sexual) | 3 | 1.36 | 1.88 |
Gyaru Clothes | 1 | 2.68 | 1.86 |
Twin Boobjob Subject of (Sexual) | 1 | 2.68 | 1.86 |
Imouto Act Role | 1 | 2.59 | 1.79 |
Reverse Cowgirl Subject of (Sexual) | 2 | 1.63 | 1.79 |
Piledriver Engages in (Sexual) | 1 | 2.55 | 1.77 |
Sixty-nine Engages in (Sexual) | 3 | 1.26 | 1.75 |
Quickie Fix Subject of (Sexual) | 4 | 1.08 | 1.74 |
Wake-up Sex Subject of (Sexual) | 1 | 2.48 | 1.72 |
Boobjob Engages in (Sexual) | 4 | 1.07 | 1.72 |
Miniskirt Clothes | 4 | 1.06 | 1.71 |
Sex at School Engages in (Sexual) | 2 | 1.55 | 1.70 |
Half Updo Hair | 1 | 2.44 | 1.69 |
Friendly Personality | 3 | 1.22 | 1.69 |
Modern Tsundere Personality | 1 | 2.42 | 1.68 |
Non-blood-related Brother Role | 1 | 2.38 | 1.65 |
Piss Drinking Subject of (Sexual) | 1 | 2.36 | 1.64 |
Wake-up Sex Engages in (Sexual) | 1 | 2.36 | 1.64 |
Standing Sex Subject of (Sexual) | 3 | 1.18 | 1.63 |
Facesitting Subject of (Sexual) | 1 | 2.35 | 1.63 |
Incest Engages in (Sexual) | 2 | 1.47 | 1.61 |
Pissing Engages in (Sexual) | 2 | 1.47 | 1.61 |
Shirt Clothes | 3 | 1.16 | 1.61 |
Outdoor Sex Engages in (Sexual) | 3 | 1.16 | 1.60 |
Vaginal + Anal Penetration Subject of (Sexual) | 1 | 2.29 | 1.59 |
Younger Sister Role | 2 | 1.45 | 1.59 |
Nightgown Clothes | 1 | 2.28 | 1.58 |
Bondage Sex Engages in (Sexual) | 1 | 2.28 | 1.58 |
Intercrural Sex Subject of (Sexual) | 1 | 2.28 | 1.58 |
Whimsical Personality | 1 | 2.26 | 1.56 |
Big Breasts Body | 3 | 1.13 | 1.56 |
Observant Personality | 1 | 2.24 | 1.55 |
Sexual Cosplay Engages in (Sexual) | 1 | 2.24 | 1.55 |
V Bangs Hair | 2 | 1.41 | 1.55 |
Body Ribbon Clothes | 1 | 2.23 | 1.54 |
Reverse Cowgirl Engages in (Sexual) | 1 | 2.22 | 1.54 |
Cowgirl Subject of (Sexual) | 4 | 0.95 | 1.54 |
Spoons Engages in (Sexual) | 1 | 2.21 | 1.53 |
Seventh Posture Engages in (Sexual) | 1 | 2.19 | 1.52 |
Anal Object Insertion Subject of (Sexual) | 1 | 2.18 | 1.51 |
Footjob Subject of (Sexual) | 1 | 2.17 | 1.51 |
Seduction Engages in | 1 | 2.17 | 1.51 |
Sexual Submissive Role | 1 | 2.17 | 1.51 |
Torn Clothing Clothes | 1 | 2.16 | 1.50 |
Doggy Style Subject of (Sexual) | 4 | 0.92 | 1.49 |
Fainting Subject of | 1 | 2.14 | 1.48 |
Voyeurism Engages in (Sexual) | 1 | 2.14 | 1.48 |
Hidden Vibrator Subject of (Sexual) | 1 | 2.12 | 1.47 |
Tominagi Engages in (Sexual) | 1 | 2.11 | 1.46 |
Hospitalization Subject of | 1 | 2.10 | 1.46 |
Ahoge Hair | 2 | 1.32 | 1.45 |
Consensual Porn Acting Engages in (Sexual) | 1 | 2.09 | 1.45 |
Waitstaff Uniform Clothes | 1 | 2.06 | 1.43 |
Brother Complex Personality | 1 | 2.06 | 1.43 |
Being Drugged Subject of | 1 | 2.06 | 1.43 |
Kind Personality | 3 | 1.03 | 1.42 |
Anal Fingering Engages in (Sexual) | 1 | 2.05 | 1.42 |
Reading Engages in | 1 | 2.04 | 1.41 |
Nipple Teasing Engages in (Sexual) | 1 | 2.01 | 1.40 |
Nurse Uniform Clothes | 1 | 2.01 | 1.39 |
Vaginal Object Insertion Subject of (Sexual) | 1 | 1.99 | 1.38 |
High School Student Role | 4 | 0.85 | 1.37 |
Decorative Belt Clothes | 1 | 1.98 | 1.37 |
Virgin Sex Engages in (Sexual) | 4 | 0.85 | 1.37 |
Facesitting Engages in (Sexual) | 1 | 1.97 | 1.37 |
Vibrator Subject of (Sexual) | 1 | 1.97 | 1.36 |
Sidehair Hair | 3 | 0.98 | 1.36 |
Voyeurism Subject of (Sexual) | 1 | 1.95 | 1.35 |
Full Brother Role | 1 | 1.95 | 1.35 |
Classmate Role | 2 | 1.23 | 1.35 |
Piledriver Subject of (Sexual) | 1 | 1.94 | 1.35 |
Assertive Personality | 1 | 1.94 | 1.34 |
Masturbation in front of an Audience Engages in (Sexual) | 1 | 1.90 | 1.32 |
Schoolmate Role | 1 | 1.90 | 1.32 |
Part-time Worker Role | 1 | 1.90 | 1.32 |
Low Self-esteem Personality | 1 | 1.90 | 1.31 |
Quickie Fix Engages in (Sexual) | 1 | 1.88 | 1.30 |
Jealous Personality | 1 | 1.87 | 1.30 |
Standing Sex Engages in (Sexual) | 1 | 1.87 | 1.29 |
Boobjob Subject of (Sexual) | 1 | 1.86 | 1.29 |
Sexual Blindfold Subject of (Sexual) | 1 | 1.86 | 1.29 |
Cunnilingus Subject of (Sexual) | 2 | 1.16 | 1.28 |
Handjob Engages in (Sexual) | 2 | 1.16 | 1.27 |
Sitting Sex Engages in (Sexual) | 1 | 1.82 | 1.26 |
Missionary Subject of (Sexual) | 2 | 1.12 | 1.23 |
Blowjob Engages in (Sexual) | 4 | 0.76 | 1.22 |
Anal Sex Engages in (Sexual) | 1 | 1.76 | 1.22 |
Handjob Subject of (Sexual) | 1 | 1.75 | 1.22 |
Side Tail Hair | 1 | 1.75 | 1.21 |
Missionary Engages in (Sexual) | 1 | 1.74 | 1.21 |
Older Brother Role | 1 | 1.73 | 1.20 |
Footjob Engages in (Sexual) | 1 | 1.72 | 1.19 |
Cowgirl Engages in (Sexual) | 1 | 1.71 | 1.19 |
Reserved Personality | 1 | 1.71 | 1.19 |
Anal Fingering Subject of (Sexual) | 1 | 1.71 | 1.19 |
Vaginal Fingering Subject of (Sexual) | 2 | 1.08 | 1.18 |
Huge Breasts Body | 1 | 1.70 | 1.18 |
Confident Personality | 1 | 1.69 | 1.17 |
Doggy Style Engages in (Sexual) | 1 | 1.68 | 1.17 |
Carefree Personality | 1 | 1.68 | 1.17 |
Ribbon Hair Accessory Clothes | 1 | 1.66 | 1.15 |
Pink Eyes | 1 | 1.62 | 1.12 |
Shy Personality | 1 | 1.62 | 1.12 |
Vaginal Fingering Engages in (Sexual) | 1 | 1.61 | 1.12 |
University Student Role | 1 | 1.59 | 1.10 |
Bondage Sex Subject of (Sexual) | 1 | 1.58 | 1.10 |
Ore Personality | 1 | 1.58 | 1.09 |
Full Sister Role | 1 | 1.56 | 1.08 |
Older Sister Role | 1 | 1.56 | 1.08 |
Cunnilingus Engages in (Sexual) | 1 | 1.55 | 1.07 |
Blowjob Subject of (Sexual) | 1 | 1.52 | 1.05 |
Orange Hair | 1 | 1.51 | 1.05 |
Necklace Clothes | 1 | 1.50 | 1.04 |
Straight Hair | 2 | 0.94 | 1.04 |
Slim Body | 5 | 0.58 | 1.03 |
Serious Personality | 1 | 1.49 | 1.03 |
Sailor School Uniform Clothes | 1 | 1.47 | 1.02 |
Seventh Posture Subject of (Sexual) | 1 | 1.46 | 1.01 |
Bikini Clothes | 1 | 1.46 | 1.01 |
Teasing Engages in | 1 | 1.44 | 1.00 |
Tank Top Clothes | 1 | 1.41 | 0.98 |
Knee-high Socks Clothes | 1 | 1.38 | 0.96 |
Tsurime Eyes | 1 | 1.38 | 0.96 |
Wavy Hair | 1 | 1.36 | 0.94 |
Pink Hair | 1 | 1.33 | 0.92 |
Curtained Hair | 1 | 1.30 | 0.90 |
Waist Length+ Hair | 2 | 0.81 | 0.89 |
Ribbon Tie Clothes | 1 | 1.25 | 0.87 |
Teen Body | 3 | 0.62 | 0.86 |
School Uniform Clothes | 2 | 0.76 | 0.83 |
Blue Hair | 1 | 1.19 | 0.83 |
Anal Sex Subject of (Sexual) | 1 | 1.19 | 0.82 |
Long Hair | 2 | 0.75 | 0.82 |
Twin Tails Hair | 1 | 1.13 | 0.78 |
Tareme Eyes | 1 | 1.11 | 0.77 |
Ponytail Hair | 1 | 1.10 | 0.76 |
Sitting Sex Subject of (Sexual) | 1 | 1.06 | 0.74 |
Parted to Side Hair | 1 | 1.05 | 0.73 |
Amber Eyes | 1 | 1.03 | 0.72 |
Short Hair | 2 | 0.61 | 0.67 |
Pale Body | 5 | 0.37 | 0.66 |
Shoulder-length Hair | 1 | 0.92 | 0.64 |
Blond Hair | 1 | 0.89 | 0.62 |
Black Hair | 1 | 0.81 | 0.56 |
Young-adult Body | 1 | 0.76 | 0.53 |
Brown Hair | 1 | 0.68 | 0.47 |