Average Rating:7.19
Bayesian Rating:6.67
Total Votes:28
Updated 13 days ago
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 |
|---|---|---|---|
| Non-blood-related Incest Engages in (Sexual) | 2 | 2.20 | 2.41 |
| Non-blood-related Sister Role | 2 | 2.16 | 2.37 |
| Emotional Personality | 2 | 2.10 | 2.30 |
| Off-The-Shoulder Sweater Clothes | 1 | 3.09 | 2.15 |
| Observant Personality | 1 | 3.06 | 2.12 |
| Big Breasts Body | 3 | 1.48 | 2.05 |
| Chastity Belt Clothes | 1 | 2.94 | 2.04 |
| Cooking Engages in | 3 | 1.42 | 1.97 |
| Gyaru Clothes | 1 | 2.82 | 1.96 |
| Teal Eyes | 2 | 1.68 | 1.84 |
| Friendly Personality | 3 | 1.27 | 1.76 |
| Non-blood-related Brother Role | 1 | 2.46 | 1.71 |
| Miniskirt Clothes | 4 | 1.04 | 1.68 |
| Whimsical Personality | 1 | 2.42 | 1.68 |
| Modern Tsundere Personality | 1 | 2.40 | 1.67 |
| Fainting Subject of | 1 | 2.38 | 1.65 |
| Nightgown Clothes | 1 | 2.38 | 1.65 |
| Pissing on Others Engages in (Sexual) | 1 | 2.36 | 1.64 |
| Incest Engages in (Sexual) | 2 | 1.49 | 1.63 |
| Seduction Engages in | 1 | 2.35 | 1.63 |
| Younger Sister Role | 2 | 1.44 | 1.59 |
| V Bangs Hair | 2 | 1.43 | 1.57 |
| Shirt Clothes | 3 | 1.13 | 1.57 |
| Big Ass Body | 1 | 2.23 | 1.55 |
| Pissing Subject of (Sexual) | 1 | 2.23 | 1.54 |
| Being Drugged Subject of | 1 | 2.22 | 1.54 |
| Reading Engages in | 1 | 2.18 | 1.51 |
| Average Height Body | 5 | 0.84 | 1.51 |
| Body Ribbon Clothes | 1 | 2.16 | 1.50 |
| Hospitalization Subject of | 1 | 2.16 | 1.49 |
| Kind Personality | 3 | 1.08 | 1.49 |
| Assertive Personality | 1 | 2.11 | 1.46 |
| Brocon Personality | 1 | 2.04 | 1.42 |
| Waitstaff Uniform Clothes | 1 | 2.03 | 1.41 |
| Huge Breasts Body | 1 | 2.02 | 1.40 |
| Jealous Personality | 1 | 2.01 | 1.39 |
| Ahoge Hair | 2 | 1.26 | 1.39 |
| Low Self-esteem Personality | 1 | 2.00 | 1.39 |
| Decorative Belt Clothes | 1 | 1.98 | 1.37 |
| Full Brother Role | 1 | 1.98 | 1.37 |
| Sidehair Hair | 3 | 0.97 | 1.35 |
| Classmate Role | 2 | 1.22 | 1.34 |
| Part-time Worker Role | 1 | 1.93 | 1.34 |
| Confident Personality | 1 | 1.84 | 1.28 |
| Reserved Personality | 1 | 1.77 | 1.23 |
| Older Brother Role | 1 | 1.77 | 1.23 |
| Schoolmate Role | 1 | 1.75 | 1.21 |
| High School Student Role | 4 | 0.75 | 1.20 |
| University Student Role | 1 | 1.72 | 1.19 |
| Side Tail Hair | 1 | 1.72 | 1.19 |
| Ore Personality | 1 | 1.67 | 1.16 |
| Shy Personality | 1 | 1.62 | 1.12 |
| Pink Eyes | 1 | 1.61 | 1.12 |
| Carefree Personality | 1 | 1.60 | 1.11 |
| Ribbon Hair Accessory Clothes | 1 | 1.58 | 1.09 |
| Full Sister Role | 1 | 1.58 | 1.09 |
| Older Sister Role | 1 | 1.56 | 1.08 |
| Teasing Engages in | 1 | 1.54 | 1.07 |
| Straight Hair | 2 | 0.97 | 1.06 |
| Serious Personality | 1 | 1.53 | 1.06 |
| Necklace Clothes | 1 | 1.50 | 1.04 |
| Sailor School Uniform Clothes | 1 | 1.50 | 1.04 |
| Orange Hair | 1 | 1.49 | 1.03 |
| Tank Top Clothes | 1 | 1.45 | 1.01 |
| Bikini Clothes | 1 | 1.45 | 1.00 |
| Pissing Engages in (Sexual) | 1 | 1.44 | 1.00 |
| Slim Body | 5 | 0.53 | 0.95 |
| Tsurime Eyes | 1 | 1.35 | 0.93 |
| Wavy Hair | 1 | 1.35 | 0.93 |
| Knee-high Socks Clothes | 1 | 1.32 | 0.91 |
| Pink Hair | 1 | 1.31 | 0.91 |
| Curtained Hair | 1 | 1.26 | 0.87 |
| Waist Length+ Hair | 2 | 0.76 | 0.83 |
| Ribbon Tie Clothes | 1 | 1.19 | 0.83 |
| Long Hair | 2 | 0.74 | 0.81 |
| Blue Hair | 1 | 1.15 | 0.80 |
| Teen Body | 3 | 0.57 | 0.79 |
| Parted to Side Hair | 1 | 1.11 | 0.77 |
| Ponytail Hair | 1 | 1.08 | 0.75 |
| Twin Tails Hair | 1 | 1.08 | 0.75 |
| Tareme Eyes | 1 | 1.04 | 0.72 |
| Amber Eyes | 1 | 1.01 | 0.70 |
| School Uniform Clothes | 2 | 0.63 | 0.69 |
| Pale Body | 5 | 0.39 | 0.69 |
| Short Hair | 2 | 0.60 | 0.66 |
| Shoulder-length Hair | 1 | 0.91 | 0.63 |
| Blond Hair | 1 | 0.88 | 0.61 |
| Black Hair | 1 | 0.84 | 0.58 |
| Young-adult Body | 1 | 0.78 | 0.54 |
| Brown Hair | 1 | 0.67 | 0.47 |