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]
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Semen Security 2009 has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
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| Name | Characters | Importance | Weight |
|---|---|---|---|
| Anthropomorphized Inanimate Object Role | 4 | 2.65 | 4.26 |
| Group Sex Engages in (Sexual) | 4 | 1.45 | 2.33 |
| Braided Odango Hair | 1 | 3.25 | 2.25 |
| Naked Clothes | 2 | 1.95 | 2.14 |
| Butterfly Subject of (Sexual) | 5 | 1.17 | 2.10 |
| Big Breast Sizes Body | 3 | 1.47 | 2.04 |
| Honest Personality | 2 | 1.84 | 2.02 |
| Pink Rotor Subject of (Sexual) | 2 | 1.83 | 2.02 |
| Hair Ribbon Clothes | 2 | 1.77 | 1.95 |
| Boots Clothes | 2 | 1.68 | 1.84 |
| Perfectionist Personality | 1 | 2.61 | 1.81 |
| Arm Warmers Clothes | 1 | 2.60 | 1.80 |
| Naizuri Engages in (Sexual) | 1 | 2.56 | 1.77 |
| Pregnant Sex Engages in (Sexual) | 2 | 1.53 | 1.68 |
| Computering Engages in | 1 | 2.40 | 1.66 |
| Serious Personality | 2 | 1.50 | 1.64 |
| Kuudere Personality | 1 | 2.34 | 1.62 |
| Half-naked Clothes | 1 | 2.33 | 1.62 |
| Lolita Clothes | 1 | 2.25 | 1.56 |
| Necktie Clothes | 3 | 1.11 | 1.54 |
| Food Play Engages in (Sexual) | 1 | 2.22 | 1.54 |
| Hairpin Clothes | 2 | 1.39 | 1.53 |
| Tareme Eyes | 3 | 1.09 | 1.52 |
| Knee-high Socks Clothes | 2 | 1.37 | 1.51 |
| Vaginal Fingering Subject of (Sexual) | 3 | 1.08 | 1.50 |
| Boobs on Glass Subject of (Sexual) | 1 | 2.14 | 1.49 |
| Boobjob Engages in (Sexual) | 3 | 1.06 | 1.47 |
| Court Shoes Clothes | 1 | 2.12 | 1.47 |
| Sitting Sex Subject of (Sexual) | 3 | 1.05 | 1.46 |
| Docile Personality | 1 | 2.06 | 1.43 |
| Otaku Personality | 1 | 2.05 | 1.42 |
| Dress Shoes Clothes | 1 | 2.02 | 1.40 |
| Sixty-nine Engages in (Sexual) | 2 | 1.25 | 1.38 |
| Dress Clothes | 2 | 1.24 | 1.36 |
| Blowjob Engages in (Sexual) | 5 | 0.76 | 1.36 |
| Small Breast Sizes Body | 1 | 1.96 | 1.36 |
| Classmate Role | 2 | 1.23 | 1.35 |
| Immature Personality | 1 | 1.94 | 1.34 |
| Over The Knee Socks Clothes | 1 | 1.93 | 1.34 |
| Airhead Personality | 1 | 1.91 | 1.33 |
| Cowgirl Subject of (Sexual) | 3 | 0.95 | 1.32 |
| Ribbon Hair Tie Clothes | 2 | 1.18 | 1.30 |
| Tsundere Personality | 1 | 1.87 | 1.30 |
| Naked Apron Clothes | 1 | 1.87 | 1.29 |
| Standing Sex Subject of (Sexual) | 2 | 1.18 | 1.29 |
| Doggy Style Subject of (Sexual) | 3 | 0.92 | 1.28 |
| Short (obsolete) Body | 1 | 1.81 | 1.26 |
| Detached Sleeves Clothes | 1 | 1.81 | 1.25 |
| Twin Tails Hair | 2 | 1.12 | 1.23 |
| Outgoing Personality | 1 | 1.76 | 1.22 |
| Proactive Personality | 1 | 1.75 | 1.21 |
| Reserved Personality | 1 | 1.73 | 1.20 |
| Anal Fingering Subject of (Sexual) | 1 | 1.71 | 1.19 |
| Footjob Engages in (Sexual) | 1 | 1.71 | 1.19 |
| Naive Personality | 1 | 1.71 | 1.18 |
| Quickie Fix Subject of (Sexual) | 2 | 1.08 | 1.18 |
| Stoic Personality | 1 | 1.70 | 1.18 |
| Virgin Sex Engages in (Sexual) | 3 | 0.84 | 1.17 |
| Shorts Clothes | 1 | 1.67 | 1.16 |
| Spoons Subject of (Sexual) | 1 | 1.67 | 1.16 |
| Ribbon Hair Accessory Clothes | 1 | 1.64 | 1.14 |
| Thigh-high Stockings Clothes | 2 | 1.03 | 1.14 |
| 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 | 1.56 | 1.08 |
| Sex in Water Engages in (Sexual) | 1 | 1.56 | 1.08 |
| Energetic Personality | 1 | 1.53 | 1.06 |
| Maid's Dress Clothes | 1 | 1.51 | 1.05 |
| Pissing Engages in (Sexual) | 1 | 1.46 | 1.01 |
| Headband Clothes | 1 | 1.44 | 1.00 |
| V Bangs Hair | 1 | 1.42 | 0.98 |
| Cooking Engages in | 1 | 1.41 | 0.98 |
| Blond Hair | 2 | 0.88 | 0.97 |
| Kid Body | 1 | 1.36 | 0.94 |
| High School Student Role | 2 | 0.84 | 0.92 |
| Slim Body | 4 | 0.57 | 0.92 |
| Red Hair | 1 | 1.32 | 0.92 |
| Ahoge Hair | 1 | 1.31 | 0.91 |
| Curtained Hair | 1 | 1.30 | 0.90 |
| Waist Length+ Hair | 2 | 0.80 | 0.88 |
| Blue Eyes | 2 | 0.80 | 0.88 |
| Parted in Middle Hair | 1 | 1.25 | 0.87 |
| Ribbon Tie Clothes | 1 | 1.24 | 0.86 |
| Friendly Personality | 1 | 1.23 | 0.85 |
| Teen Body | 3 | 0.61 | 0.85 |
| Young-adult Body | 2 | 0.77 | 0.85 |
| Trousers Clothes | 1 | 1.21 | 0.84 |
| Red Eyes | 1 | 1.19 | 0.83 |
| Anal Sex Subject of (Sexual) | 1 | 1.19 | 0.82 |
| Blue Hair | 1 | 1.19 | 0.82 |
| Cunnilingus Subject of (Sexual) | 1 | 1.17 | 0.81 |
| School Uniform Clothes | 2 | 0.74 | 0.81 |
| Outdoor Sex Engages in (Sexual) | 1 | 1.16 | 0.80 |
| Parted to Side Hair | 1 | 1.07 | 0.74 |
| Miniskirt Clothes | 1 | 1.07 | 0.74 |
| Pale Body | 6 | 0.37 | 0.72 |
| Violet Eyes | 1 | 1.04 | 0.72 |
| Green Eyes | 1 | 1.01 | 0.70 |
| Spiky Bangs Hair | 1 | 1.01 | 0.70 |
| Sidehair Hair | 1 | 0.98 | 0.68 |
| Shoulder-length Hair | 1 | 0.91 | 0.63 |
| Long Hair | 1 | 0.75 | 0.52 |
| Brown Hair | 1 | 0.68 | 0.47 |
| 4 | 0.00 | 0.00 |