Sweet love and sex between lovers! The secret love affair between Serika a teacher and her student. [Edited from DLsite English]
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Koibito = Love x Sex 4 has not yet been read by enough users to calculate it's similar novels... sorry!
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Koibito = Love x Sex 4 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 | Score | Importance | Weight |
|---|---|---|---|
| School Nurse Support Character | 2.00 | 2.48 | 4.95 |
| School Nurse Heroine | 2.00 | 2.23 | 4.46 |
| Student-Teacher Romance | 2.00 | 2.18 | 4.36 |
| Big Breast Sizes Heroine | 2.50 | 1.31 | 3.28 |
| Student Protagonist | 2.50 | 1.26 | 3.15 |
| School | 2.00 | 1.51 | 3.02 |
| Tsundere Heroine | 2.00 | 1.40 | 2.80 |
| Teacher Heroine | 2.00 | 1.37 | 2.73 |
| Few Choices | 2.00 | 1.33 | 2.66 |
| Twin Blowjob | 2.00 | 1.29 | 2.57 |
| Female Ejaculation | 2.00 | 1.27 | 2.55 |
| Bathroom Sex | 2.00 | 1.19 | 2.37 |
| Adult Heroine | 2.00 | 1.13 | 2.27 |
| Student Heroine | 2.00 | 0.99 | 1.99 |
| Cunnilingus | 2.00 | 0.93 | 1.86 |
| Group Sex of One Male and Several Females | 2.00 | 0.92 | 1.83 |
| Heroine with Big Breasts | 2.00 | 0.84 | 1.68 |
| Nukige | 2.50 | 0.65 | 1.63 |
| Sexual Content | 2.00 | 0.63 | 1.26 |
| Male Protagonist | 2.00 | 0.30 | 0.60 |
| ADV | 2.00 | 0.14 | 0.29 |
| Name | Characters | Importance | Weight |
|---|---|---|---|
| Flirting Engages in | 4 | 1.79 | 2.88 |
| Marriage Complex Personality | 1 | 3.82 | 2.65 |
| Gakuran Clothes | 2 | 2.33 | 2.56 |
| Puffy Sleeves Clothes | 3 | 1.85 | 2.56 |
| Sex in Water Engages in (Sexual) | 4 | 1.56 | 2.51 |
| Deep V-Neck Swimsuit Clothes | 1 | 3.49 | 2.42 |
| Flirting Subject of | 2 | 2.08 | 2.28 |
| Female Ejaculation Engages in (Sexual) | 4 | 1.36 | 2.19 |
| Girlfriend Role | 3 | 1.54 | 2.13 |
| Unusual Eyebrows Hair | 1 | 3.04 | 2.10 |
| Big Breasts Body | 5 | 1.13 | 2.03 |
| Bikini Clothes | 3 | 1.46 | 2.02 |
| Teasing Engages in | 3 | 1.44 | 2.00 |
| Missionary Subject of (Sexual) | 5 | 1.12 | 2.00 |
| Deepthroat Engages in (Sexual) | 2 | 1.80 | 1.98 |
| Flower / Plant Items | 1 | 2.84 | 1.97 |
| Spiky Bangs Hair | 6 | 1.00 | 1.94 |
| Masturbation Engages in (Sexual) | 3 | 1.39 | 1.93 |
| Boobjob Engages in (Sexual) | 5 | 1.07 | 1.91 |
| Pocket Square Clothes | 1 | 2.75 | 1.91 |
| Miniskirt Clothes | 5 | 1.06 | 1.90 |
| Twin Boobjob Subject of (Sexual) | 1 | 2.68 | 1.85 |
| Intake Hair | 2 | 1.68 | 1.84 |
| Teasing Subject of | 2 | 1.65 | 1.81 |
| Pervert Personality | 2 | 1.63 | 1.79 |
| Sex in Public Places Engages in (Sexual) | 3 | 1.26 | 1.74 |
| Ribbon Tie Clothes | 3 | 1.25 | 1.74 |
| Clothing with Ribbons Clothes | 2 | 1.58 | 1.73 |
| Sleeveless Sweater Clothes | 1 | 2.48 | 1.72 |
| Romantic Personality | 1 | 2.48 | 1.72 |
| School Nurse Role | 1 | 2.46 | 1.71 |
| Trench Coat Clothes | 1 | 2.46 | 1.71 |
| Half Updo Hair | 1 | 2.44 | 1.69 |
| Modern Tsundere Personality | 1 | 2.42 | 1.68 |
| Vest Clothes | 2 | 1.52 | 1.67 |
| Friend Role | 3 | 1.20 | 1.67 |
| Group Sex Engages in (Sexual) | 2 | 1.51 | 1.66 |
| Blue Hair | 3 | 1.19 | 1.66 |
| Sex in Front of an Audience Engages in (Sexual) | 2 | 1.50 | 1.65 |
| Sister Complex Personality | 1 | 2.38 | 1.65 |
| Computering Engages in | 1 | 2.35 | 1.63 |
| Deepthroat Subject of (Sexual) | 1 | 2.35 | 1.63 |
| Cunnilingus Subject of (Sexual) | 3 | 1.16 | 1.61 |
| Spoiled Personality | 1 | 2.32 | 1.60 |
| Distrustful Personality | 1 | 2.29 | 1.59 |
| Pantyhose Clothes | 2 | 1.42 | 1.57 |
| Cooking Engages in | 2 | 1.42 | 1.56 |
| Body Ribbon Clothes | 1 | 2.23 | 1.54 |
| Cowgirl Subject of (Sexual) | 4 | 0.95 | 1.53 |
| Straight Hair | 4 | 0.94 | 1.52 |
| Footjob Subject of (Sexual) | 1 | 2.18 | 1.51 |
| Boobs on Glass Subject of (Sexual) | 1 | 2.15 | 1.49 |
| Ankle Length Hair | 1 | 2.12 | 1.47 |
| Parted to Side Hair | 3 | 1.05 | 1.45 |
| Violet Eyes | 3 | 1.05 | 1.45 |
| Medical Doctor Role | 1 | 2.09 | 1.45 |
| Curtained Hair | 2 | 1.30 | 1.43 |
| Anal Fingering Engages in (Sexual) | 1 | 2.05 | 1.42 |
| Tall Body | 1 | 2.04 | 1.42 |
| Yamato Nadeshiko Role | 1 | 2.00 | 1.38 |
| Sixty-nine Engages in (Sexual) | 2 | 1.26 | 1.38 |
| High School Student Role | 4 | 0.85 | 1.37 |
| Betrothed Role | 1 | 1.98 | 1.37 |
| Classmate Role | 2 | 1.23 | 1.35 |
| Military Uniform Clothes | 1 | 1.94 | 1.35 |
| Assertive Personality | 1 | 1.94 | 1.34 |
| Antenna Hair | 1 | 1.93 | 1.34 |
| Ribbon Hair Tie Clothes | 2 | 1.19 | 1.31 |
| Naked Apron Clothes | 1 | 1.88 | 1.30 |
| Tsundere Personality | 1 | 1.87 | 1.30 |
| Timid Personality | 1 | 1.86 | 1.29 |
| Boobjob Subject of (Sexual) | 1 | 1.86 | 1.29 |
| Doggy Style Subject of (Sexual) | 3 | 0.92 | 1.28 |
| Short-tempered Personality | 1 | 1.85 | 1.28 |
| Outdoor Sex Engages in (Sexual) | 2 | 1.16 | 1.27 |
| Strict Personality | 1 | 1.83 | 1.27 |
| Sitting Sex Engages in (Sexual) | 1 | 1.82 | 1.26 |
| Son Role | 1 | 1.82 | 1.26 |
| Mature Personality | 1 | 1.81 | 1.26 |
| Hair Ribbon Clothes | 1 | 1.80 | 1.25 |
| Lab Coat Clothes | 1 | 1.80 | 1.24 |
| Boku Personality | 1 | 1.78 | 1.23 |
| Twin Boobjob Engages in (Sexual) | 1 | 1.77 | 1.23 |
| Blowjob Engages in (Sexual) | 4 | 0.76 | 1.22 |
| Anal Sex Engages in (Sexual) | 1 | 1.76 | 1.22 |
| Tareme Eyes | 2 | 1.11 | 1.21 |
| Handjob Subject of (Sexual) | 1 | 1.75 | 1.21 |
| School Uniform Clothes | 4 | 0.75 | 1.21 |
| Missionary Engages in (Sexual) | 1 | 1.74 | 1.21 |
| Teen Body | 6 | 0.62 | 1.21 |
| Cheerful Personality | 1 | 1.74 | 1.20 |
| Mobile Phone Items | 1 | 1.74 | 1.20 |
| Footjob Engages in (Sexual) | 1 | 1.72 | 1.19 |
| Cowgirl Engages in (Sexual) | 1 | 1.71 | 1.19 |
| Anal Fingering Subject of (Sexual) | 1 | 1.71 | 1.19 |
| Virgin Sex Engages in (Sexual) | 3 | 0.85 | 1.18 |
| Hoodie Clothes | 1 | 1.70 | 1.18 |
| Arrogant Personality | 1 | 1.70 | 1.18 |
| Naive Personality | 1 | 1.69 | 1.17 |
| Doggy Style Engages in (Sexual) | 1 | 1.68 | 1.17 |
| Sitting Sex Subject of (Sexual) | 2 | 1.06 | 1.17 |
| Stubborn Personality | 1 | 1.67 | 1.16 |
| Cyan Eyes | 1 | 1.66 | 1.15 |
| Kind Personality | 2 | 1.03 | 1.13 |
| Slim Body | 6 | 0.58 | 1.12 |
| Vaginal Fingering Engages in (Sexual) | 1 | 1.62 | 1.12 |
| Senpai Role | 1 | 1.61 | 1.12 |
| Apron Clothes | 1 | 1.58 | 1.10 |
| Short Hair | 5 | 0.61 | 1.09 |
| Teacher Role | 1 | 1.56 | 1.08 |
| Cunnilingus Engages in (Sexual) | 1 | 1.55 | 1.08 |
| Sidehair Hair | 2 | 0.98 | 1.07 |
| Refined Personality | 1 | 1.54 | 1.07 |
| Blowjob Subject of (Sexual) | 1 | 1.52 | 1.05 |
| Serious Personality | 1 | 1.49 | 1.03 |
| Seventh Posture Subject of (Sexual) | 1 | 1.46 | 1.01 |
| Twin Blowjob Engages in (Sexual) | 1 | 1.45 | 1.00 |
| Brown Eyes | 2 | 0.90 | 0.99 |
| Not a Virgin Role | 1 | 1.41 | 0.98 |
| Blond Hair | 2 | 0.89 | 0.98 |
| Tsurime Eyes | 1 | 1.38 | 0.96 |
| Wavy Hair | 1 | 1.36 | 0.94 |
| Bukkake Subject of (Sexual) | 1 | 1.35 | 0.93 |
| Adult Body | 1 | 1.34 | 0.93 |
| Pink Hair | 1 | 1.33 | 0.92 |
| Ahoge Hair | 1 | 1.32 | 0.92 |
| Ahegao Engages in (Sexual) | 1 | 1.32 | 0.92 |
| Waist Length+ Hair | 2 | 0.81 | 0.89 |
| Blue Eyes | 2 | 0.80 | 0.88 |
| Friendly Personality | 1 | 1.22 | 0.84 |
| Young-adult Body | 2 | 0.76 | 0.84 |
| Violet Hair | 1 | 1.19 | 0.83 |
| Anal Sex Subject of (Sexual) | 1 | 1.19 | 0.82 |
| Handjob Engages in (Sexual) | 1 | 1.16 | 0.80 |
| Twin Tails Hair | 1 | 1.13 | 0.78 |
| Pale Body | 7 | 0.37 | 0.77 |
| Ponytail Hair | 1 | 1.10 | 0.76 |
| Brown Hair | 2 | 0.68 | 0.75 |
| Thigh-high Stockings Clothes | 1 | 1.04 | 0.72 |