Ichinose Academy is a famous private school which is the best at everything, except its students have no romantic appeal. One fine autumn morning, the principal’s daughter Himeno declared that they will have a test to determine each student’s riajuu level. For someone who has never had a girlfriend, Hiroki naturally flunked the test. He was moved, along with five others girls who failed, to a special love training class called the "love manual". Let the lessons of love begin! [From Hau~ Omochikaeri!]
Koishiki Manual 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 |
|---|---|---|---|
| Schoolmate Role | 7 | 1.87 | 3.90 |
| Brass Instrument Items | 2 | 3.50 | 3.84 |
| Kouhai Role | 6 | 1.62 | 3.15 |
| School Music Club Member Role | 2 | 2.86 | 3.15 |
| Senpai Role | 6 | 1.61 | 3.13 |
| Clothing with Ribbons Clothes | 6 | 1.56 | 3.04 |
| Twin Footjob Engages in (Sexual) | 2 | 2.75 | 3.02 |
| Triple Blowjob Engages in (Sexual) | 3 | 2.08 | 2.89 |
| Wind Instruments Items | 1 | 4.03 | 2.80 |
| Ribbon Tie Clothes | 7 | 1.24 | 2.59 |
| Hair Ribbon Clothes | 3 | 1.77 | 2.46 |
| Twin Handjob Engages in (Sexual) | 2 | 2.22 | 2.44 |
| Twin Footjob Subject of (Sexual) | 1 | 3.50 | 2.42 |
| Classmate Role | 6 | 1.23 | 2.39 |
| Group Sex Engages in (Sexual) | 4 | 1.45 | 2.33 |
| Tribadism on Penis Engages in (Sexual) | 2 | 2.08 | 2.29 |
| Cross-dressing Engages in | 2 | 2.05 | 2.26 |
| Sex in Water Engages in (Sexual) | 3 | 1.56 | 2.16 |
| Ahoge Hair | 4 | 1.31 | 2.11 |
| Musical Instrument Items | 1 | 3.00 | 2.08 |
| Triple Blowjob Subject of (Sexual) | 1 | 2.99 | 2.07 |
| School Tennis Club Member Role | 1 | 2.98 | 2.07 |
| Twin Handjob Subject of (Sexual) | 1 | 2.94 | 2.03 |
| Reverse Spitroast Subject of (Sexual) | 2 | 1.85 | 2.03 |
| Tennis Outfit Clothes | 1 | 2.93 | 2.03 |
| Missionary Subject of (Sexual) | 5 | 1.11 | 2.00 |
| Tribadism on Penis Subject of (Sexual) | 1 | 2.86 | 1.98 |
| Twin Boobjob Engages in (Sexual) | 2 | 1.76 | 1.94 |
| Knee-high Socks Clothes | 3 | 1.37 | 1.90 |
| Reverse-trap Body | 1 | 2.71 | 1.88 |
| Twin Boobjob Subject of (Sexual) | 1 | 2.67 | 1.85 |
| High School Student Role | 8 | 0.84 | 1.84 |
| Cyan Eyes | 2 | 1.67 | 1.83 |
| Reverse Spitroast Engages in (Sexual) | 1 | 2.61 | 1.81 |
| Tennis Engages in | 1 | 2.47 | 1.71 |
| Necklace Clothes | 2 | 1.50 | 1.65 |
| Principal Role | 1 | 2.36 | 1.64 |
| School Uniform Clothes | 8 | 0.74 | 1.62 |
| Headphones Clothes | 1 | 2.33 | 1.61 |
| Handbag Items | 1 | 2.31 | 1.60 |
| Straight Hair | 4 | 0.96 | 1.54 |
| Idiot Personality | 1 | 2.22 | 1.54 |
| Seventh Posture Engages in (Sexual) | 1 | 2.20 | 1.52 |
| Virgin Sex Engages in (Sexual) | 5 | 0.84 | 1.51 |
| Red Hair | 2 | 1.32 | 1.45 |
| Thigh-high Stockings Clothes | 3 | 1.03 | 1.43 |
| Tiny Braid Hair | 1 | 2.07 | 1.43 |
| Student Council President Role | 1 | 2.06 | 1.43 |
| Belt Clothes | 2 | 1.28 | 1.41 |
| Dress Clothes | 2 | 1.24 | 1.36 |
| Teen Body | 8 | 0.61 | 1.35 |
| Clumsy Personality | 1 | 1.93 | 1.34 |
| Friend Role | 2 | 1.21 | 1.33 |
| Atashi Personality | 1 | 1.91 | 1.33 |
| Low Self-esteem Personality | 1 | 1.91 | 1.32 |
| Quickie Fix Engages in (Sexual) | 1 | 1.89 | 1.31 |
| Standing Sex Engages in (Sexual) | 1 | 1.88 | 1.31 |
| Blue Hair | 2 | 1.19 | 1.30 |
| Boobjob Subject of (Sexual) | 1 | 1.87 | 1.30 |
| Waist Length+ Hair | 4 | 0.80 | 1.29 |
| Doggy Style Subject of (Sexual) | 3 | 0.92 | 1.28 |
| Homosexual Role | 1 | 1.84 | 1.27 |
| Tattoo Body | 1 | 1.84 | 1.27 |
| Sitting Sex Engages in (Sexual) | 1 | 1.83 | 1.27 |
| Shirt Clothes | 2 | 1.15 | 1.27 |
| Blazer Clothes | 1 | 1.83 | 1.27 |
| Slim Body | 8 | 0.57 | 1.26 |
| Twin Tails Hair | 2 | 1.12 | 1.23 |
| Scarf Clothes | 1 | 1.77 | 1.23 |
| Handjob Subject of (Sexual) | 1 | 1.76 | 1.22 |
| Missionary Engages in (Sexual) | 1 | 1.75 | 1.21 |
| Mischievous Personality | 1 | 1.74 | 1.21 |
| Reserved Personality | 1 | 1.73 | 1.20 |
| Cowgirl Engages in (Sexual) | 1 | 1.72 | 1.19 |
| Nipple Sucking Engages in (Sexual) | 1 | 1.71 | 1.19 |
| Vaginal Fingering Subject of (Sexual) | 2 | 1.08 | 1.18 |
| Quickie Fix Subject of (Sexual) | 2 | 1.08 | 1.18 |
| Stoic Personality | 1 | 1.70 | 1.18 |
| Doggy Style Engages in (Sexual) | 1 | 1.70 | 1.18 |
| Shorts Clothes | 1 | 1.67 | 1.16 |
| Muscular Body | 1 | 1.65 | 1.14 |
| Kind Personality | 2 | 1.04 | 1.14 |
| Relaxed Personality | 1 | 1.64 | 1.14 |
| Popular Role | 1 | 1.64 | 1.13 |
| Mini-dress Clothes | 1 | 1.63 | 1.13 |
| Vaginal Fingering Engages in (Sexual) | 1 | 1.62 | 1.13 |
| Pink Eyes | 1 | 1.61 | 1.12 |
| Cunnilingus Engages in (Sexual) | 1 | 1.56 | 1.08 |
| Teacher Role | 1 | 1.55 | 1.07 |
| Blowjob Subject of (Sexual) | 1 | 1.53 | 1.06 |
| Vest Clothes | 1 | 1.53 | 1.06 |
| Energetic Personality | 1 | 1.53 | 1.06 |
| Cowgirl Subject of (Sexual) | 2 | 0.95 | 1.05 |
| Orange Hair | 1 | 1.51 | 1.04 |
| Daughter Role | 1 | 1.47 | 1.02 |
| Mother Role | 1 | 1.47 | 1.02 |
| Smart Personality | 1 | 1.47 | 1.02 |
| Seventh Posture Subject of (Sexual) | 1 | 1.45 | 1.01 |
| Shoulder-length Hair | 2 | 0.91 | 1.00 |
| Suit Clothes | 1 | 1.44 | 1.00 |
| Headband Clothes | 1 | 1.44 | 1.00 |
| Pantyhose Clothes | 1 | 1.42 | 0.98 |
| Hair Tie Clothes | 1 | 1.41 | 0.98 |
| Hairpin Clothes | 1 | 1.39 | 0.97 |
| Nipple Sucking Subject of (Sexual) | 1 | 1.39 | 0.96 |
| Adult Body | 1 | 1.36 | 0.94 |
| Blue Eyes | 2 | 0.80 | 0.88 |
| Pale Body | 9 | 0.37 | 0.86 |
| Friendly Personality | 1 | 1.23 | 0.85 |
| Blowjob Engages in (Sexual) | 2 | 0.76 | 0.84 |
| Violet Hair | 1 | 1.19 | 0.82 |
| Ribbon Hair Tie Clothes | 1 | 1.18 | 0.82 |
| Standing Sex Subject of (Sexual) | 1 | 1.18 | 0.82 |
| Cunnilingus Subject of (Sexual) | 1 | 1.17 | 0.81 |
| Handjob Engages in (Sexual) | 1 | 1.16 | 0.80 |
| Ponytail Hair | 1 | 1.10 | 0.76 |
| Glasses Clothes | 1 | 1.08 | 0.75 |
| Brown Hair | 2 | 0.68 | 0.75 |
| Miniskirt Clothes | 1 | 1.07 | 0.74 |
| Boobjob Engages in (Sexual) | 1 | 1.06 | 0.74 |
| Sitting Sex Subject of (Sexual) | 1 | 1.05 | 0.73 |
| Violet Eyes | 1 | 1.04 | 0.72 |
| Brown Eyes | 1 | 0.90 | 0.62 |
| Black Hair | 1 | 0.81 | 0.56 |
| Young-adult Body | 1 | 0.77 | 0.53 |
| Long Hair | 1 | 0.75 | 0.52 |
| Short Hair | 1 | 0.61 | 0.42 |
| 10 | 0.00 | 0.00 |