One day, when Tasuba turns on his PC, a lot of virus mails arrive and a PC monitor suddenly flashes. A while later, it disappears and a pretty girl comes out of the monitor. According to her, her name is Meira and she comes from his PC mail software. Due to his virus mails, the PC is now unworkable. To get rid of them, he needs to shower his semen to her.... Like this, his semen vaccine life with her and other virus-infected girls starts.... [From ErogeShop.com]
Semen Security 2009 has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
A novel needs atleast 20 owners before it's similarity is calculated.
| Name | Characters | Importance | Weight |
|---|---|---|---|
| Anthropomorphized Inanimate Object Role | 4 | 2.67 | 4.30 |
| Group Sex Engages in (Sexual) | 4 | 1.55 | 2.50 |
| Braided Odango Hair | 1 | 3.25 | 2.25 |
| Big Breast Sizes Body | 3 | 1.61 | 2.23 |
| Naked Clothes | 2 | 1.95 | 2.14 |
| Butterfly Subject of (Sexual) | 5 | 1.17 | 2.10 |
| Pink Rotor Subject of (Sexual) | 2 | 1.84 | 2.02 |
| Honest Personality | 2 | 1.83 | 2.01 |
| Hair Ribbon Clothes | 2 | 1.81 | 1.99 |
| Boots Clothes | 2 | 1.68 | 1.84 |
| Perfectionist Personality | 1 | 2.62 | 1.82 |
| Arm Warmers Clothes | 1 | 2.58 | 1.79 |
| Naizuri Engages in (Sexual) | 1 | 2.58 | 1.78 |
| Sex while Being Pregnant Engages in (Sexual) | 2 | 1.54 | 1.69 |
| Serious Personality | 2 | 1.48 | 1.63 |
| Kuudere Personality | 1 | 2.35 | 1.63 |
| Half-naked Clothes | 1 | 2.34 | 1.62 |
| Computering Engages in | 1 | 2.33 | 1.61 |
| Lolita Clothes | 1 | 2.28 | 1.58 |
| Necktie Clothes | 3 | 1.12 | 1.55 |
| Food Play Engages in (Sexual) | 1 | 2.24 | 1.55 |
| Hairpin Clothes | 2 | 1.41 | 1.55 |
| Tareme Eyes | 3 | 1.11 | 1.54 |
| Knee-high Socks Clothes | 2 | 1.39 | 1.53 |
| Boobs on Glass Subject of (Sexual) | 1 | 2.16 | 1.50 |
| Vaginal Fingering Subject of (Sexual) | 3 | 1.08 | 1.49 |
| Boobjob Engages in (Sexual) | 3 | 1.07 | 1.49 |
| Sitting Sex Subject of (Sexual) | 3 | 1.06 | 1.47 |
| Court Shoes Clothes | 1 | 2.10 | 1.45 |
| Short (obsolete) Body | 1 | 2.06 | 1.43 |
| Small Breast Sizes Body | 1 | 2.06 | 1.43 |
| Otaku Personality | 1 | 2.04 | 1.42 |
| Docile Personality | 1 | 2.04 | 1.42 |
| Dress Shoes Clothes | 1 | 2.01 | 1.40 |
| Sixty-nine Engages in (Sexual) | 2 | 1.26 | 1.39 |
| Dress Clothes | 2 | 1.26 | 1.38 |
| Blowjob Engages in (Sexual) | 5 | 0.76 | 1.37 |
| Over The Knee Socks Clothes | 1 | 1.96 | 1.36 |
| Classmate Role | 2 | 1.23 | 1.35 |
| Immature Personality | 1 | 1.93 | 1.34 |
| Airhead Personality | 1 | 1.92 | 1.33 |
| Cowgirl Subject of (Sexual) | 3 | 0.95 | 1.32 |
| Ribbon Hair Tie Clothes | 2 | 1.20 | 1.32 |
| Naked Apron Clothes | 1 | 1.88 | 1.30 |
| Tsundere Personality | 1 | 1.88 | 1.30 |
| Standing Sex Subject of (Sexual) | 2 | 1.17 | 1.29 |
| Doggy Style Subject of (Sexual) | 3 | 0.92 | 1.28 |
| Detached Sleeves Clothes | 1 | 1.82 | 1.26 |
| Twin Tails Hair | 2 | 1.14 | 1.25 |
| Footjob Engages in (Sexual) | 1 | 1.72 | 1.19 |
| Quickie Fix Subject of (Sexual) | 2 | 1.08 | 1.19 |
| Outgoing Personality | 1 | 1.71 | 1.18 |
| Proactive Personality | 1 | 1.71 | 1.18 |
| Virgin Sex Engages in (Sexual) | 3 | 0.85 | 1.18 |
| Anal Fingering Subject of (Sexual) | 1 | 1.71 | 1.18 |
| Reserved Personality | 1 | 1.71 | 1.18 |
| Stoic Personality | 1 | 1.70 | 1.18 |
| Naive Personality | 1 | 1.68 | 1.17 |
| Shorts Clothes | 1 | 1.68 | 1.16 |
| Spoons Subject of (Sexual) | 1 | 1.67 | 1.15 |
| Ribbon Hair Accessory Clothes | 1 | 1.66 | 1.15 |
| Thigh-high Stockings Clothes | 2 | 1.05 | 1.15 |
| Popular Role | 1 | 1.64 | 1.13 |
| Shy Personality | 1 | 1.62 | 1.12 |
| Lactation Engages in | 1 | 1.59 | 1.10 |
| Clothing with Ribbons Clothes | 1 | 1.59 | 1.10 |
| Sex in Water Engages in (Sexual) | 1 | 1.56 | 1.08 |
| Energetic Personality | 1 | 1.52 | 1.05 |
| Maid's Dress Clothes | 1 | 1.51 | 1.05 |
| Pissing Engages in (Sexual) | 1 | 1.47 | 1.02 |
| Headband Clothes | 1 | 1.45 | 1.01 |
| Cooking Engages in | 1 | 1.42 | 0.98 |
| Blond Hair | 2 | 0.89 | 0.98 |
| V Bangs Hair | 1 | 1.41 | 0.98 |
| Kid Body | 1 | 1.38 | 0.95 |
| High School Student Role | 2 | 0.86 | 0.95 |
| Slim Body | 4 | 0.57 | 0.92 |
| Ahoge Hair | 1 | 1.33 | 0.92 |
| Red Hair | 1 | 1.32 | 0.92 |
| Curtained Hair | 1 | 1.30 | 0.90 |
| Waist Length+ Hair | 2 | 0.82 | 0.90 |
| Blue Eyes | 2 | 0.81 | 0.88 |
| Ribbon Tie Clothes | 1 | 1.26 | 0.87 |
| Teen Body | 3 | 0.62 | 0.86 |
| Parted in Middle Hair | 1 | 1.24 | 0.86 |
| School Uniform Clothes | 2 | 0.77 | 0.84 |
| Friendly Personality | 1 | 1.21 | 0.84 |
| Red Eyes | 1 | 1.20 | 0.83 |
| Blue Hair | 1 | 1.20 | 0.83 |
| Young-adult Body | 2 | 0.75 | 0.83 |
| Anal Sex Subject of (Sexual) | 1 | 1.19 | 0.82 |
| Trousers Clothes | 1 | 1.18 | 0.82 |
| Outdoor Sex Engages in (Sexual) | 1 | 1.16 | 0.80 |
| Cunnilingus Subject of (Sexual) | 1 | 1.16 | 0.80 |
| Miniskirt Clothes | 1 | 1.06 | 0.74 |
| Violet Eyes | 1 | 1.05 | 0.73 |
| Parted to Side Hair | 1 | 1.04 | 0.72 |
| Pale Body | 6 | 0.37 | 0.71 |
| Green Eyes | 1 | 1.02 | 0.71 |
| Spiky Bangs Hair | 1 | 0.99 | 0.69 |
| Sidehair Hair | 1 | 0.98 | 0.68 |
| Shoulder-length Hair | 1 | 0.92 | 0.64 |
| Long Hair | 1 | 0.75 | 0.52 |
| Brown Hair | 1 | 0.69 | 0.48 |
| 4 | 0.00 | 0.00 |