The summer of Japan is the summer of breasts!? This is a comical story where a boyish girl and a huge-breasted woman who is expected to be a worldwide scientist in the future! They fight over the protagonist, who happens to love big breasts above all! Worried about her breast size, the girl decides to make her bust larger so that she can protect her beloved boy from the seduction of the scientist and make him her boyfriend! [From DLsite English]
Poyopoyo Oppai Summer 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 |
---|---|---|---|
Twin Bellyjob Engages in (Sexual) | 2 | 3.21 | 3.52 |
Mitre Clothes | 1 | 3.35 | 2.32 |
Lace Lingerie Clothes | 2 | 2.09 | 2.30 |
Tribadism on Penis Engages in (Sexual) | 2 | 2.08 | 2.29 |
Platform Shoes Clothes | 1 | 2.93 | 2.03 |
Reverse Spitroast Subject of (Sexual) | 2 | 1.84 | 2.03 |
Twin Boobjob Engages in (Sexual) | 2 | 1.76 | 1.93 |
Breast Smothering Engages in (Sexual) | 1 | 2.68 | 1.86 |
Shorts Clothes | 2 | 1.67 | 1.84 |
Intake Hair | 2 | 1.66 | 1.83 |
Hair Beads Hair | 1 | 2.52 | 1.75 |
Nipple Insertion Subject of (Sexual) | 1 | 2.43 | 1.69 |
Pregnant Sex Engages in (Sexual) | 2 | 1.53 | 1.68 |
Shawl Clothes | 1 | 2.39 | 1.66 |
Handbag Items | 1 | 2.31 | 1.60 |
Mirror Sex Engages in (Sexual) | 1 | 2.30 | 1.59 |
Group Sex Engages in (Sexual) | 2 | 1.44 | 1.58 |
Twin Blowjob Engages in (Sexual) | 2 | 1.44 | 1.58 |
Scientist Role | 1 | 2.27 | 1.57 |
Adult Breast Feeding (obsolete) Engages in (Sexual) | 1 | 2.23 | 1.54 |
Blowjob Duck Face Engages in (Sexual) | 1 | 2.23 | 1.54 |
Micro Bikini Clothes | 1 | 2.22 | 1.54 |
Robot Role | 1 | 2.21 | 1.53 |
Torn Pantyhose (damaged) Clothes | 1 | 2.20 | 1.53 |
Nipple Sucking Subject of (Sexual) | 2 | 1.39 | 1.53 |
Spats Clothes | 1 | 2.19 | 1.52 |
Torn Clothing Clothes | 1 | 2.15 | 1.49 |
Shimapan Clothes | 1 | 2.12 | 1.47 |
Ahoge Hair | 2 | 1.31 | 1.44 |
Old Type School Swimsuit Clothes | 1 | 2.08 | 1.44 |
Wristband Clothes | 1 | 2.00 | 1.39 |
Facesitting Engages in (Sexual) | 1 | 2.00 | 1.39 |
Tomboy Personality | 1 | 1.97 | 1.37 |
Vaginal Gaping Engages in (Sexual) | 1 | 1.96 | 1.36 |
Sandals Clothes | 1 | 1.96 | 1.36 |
Fang Body | 1 | 1.88 | 1.30 |
Standing Sex Subject of (Sexual) | 2 | 1.18 | 1.29 |
Outdoor Sex Engages in (Sexual) | 2 | 1.16 | 1.27 |
Deepthroat Engages in (Sexual) | 1 | 1.81 | 1.26 |
String Ribbon Tie Clothes | 1 | 1.81 | 1.26 |
Short (obsolete) Body | 1 | 1.80 | 1.25 |
Lab Coat Clothes | 1 | 1.79 | 1.24 |
Braid Hair | 1 | 1.78 | 1.23 |
Sports Shoes Clothes | 1 | 1.73 | 1.20 |
Hoodie Clothes | 1 | 1.72 | 1.19 |
Cape Clothes | 1 | 1.70 | 1.18 |
Parted to Side Hair | 2 | 1.07 | 1.17 |
Boobjob Engages in (Sexual) | 2 | 1.06 | 1.17 |
Teasing Subject of | 1 | 1.68 | 1.16 |
Cyan Eyes | 1 | 1.67 | 1.16 |
Sweater Clothes | 1 | 1.64 | 1.13 |
Sex in Water Engages in (Sexual) | 1 | 1.56 | 1.08 |
Teacher Role | 1 | 1.54 | 1.07 |
Cowgirl Subject of (Sexual) | 2 | 0.95 | 1.05 |
Student Role | 1 | 1.48 | 1.03 |
Blouse Clothes | 1 | 1.48 | 1.03 |
Sailor School Uniform Clothes | 1 | 1.48 | 1.03 |
Big Breast Sizes Body | 1 | 1.47 | 1.02 |
Pissing Engages in (Sexual) | 1 | 1.46 | 1.01 |
Headband Clothes | 1 | 1.43 | 0.99 |
Tank Top Clothes | 1 | 1.43 | 0.99 |
Pantyhose Clothes | 1 | 1.42 | 0.98 |
Bathroom Sex Engages in (Sexual) | 1 | 1.40 | 0.97 |
Hairpin Clothes | 1 | 1.39 | 0.96 |
Kid Body | 1 | 1.36 | 0.94 |
White Hair | 1 | 1.34 | 0.93 |
Virgin Sex Engages in (Sexual) | 2 | 0.84 | 0.92 |
Ahegao Engages in (Sexual) | 1 | 1.33 | 0.92 |
Skirt Clothes | 1 | 1.33 | 0.92 |
Pink Hair | 1 | 1.32 | 0.92 |
T-shirt Clothes | 1 | 1.32 | 0.91 |
Belt Clothes | 1 | 1.28 | 0.89 |
Sex in Public Places Engages in (Sexual) | 1 | 1.26 | 0.88 |
Sixty-nine Engages in (Sexual) | 1 | 1.25 | 0.87 |
Childhood Friend Role | 1 | 1.25 | 0.87 |
Blowjob Engages in (Sexual) | 2 | 0.76 | 0.83 |
Anal Sex Subject of (Sexual) | 1 | 1.19 | 0.82 |
Butterfly Subject of (Sexual) | 1 | 1.17 | 0.81 |
Handjob Engages in (Sexual) | 1 | 1.16 | 0.80 |
Missionary Subject of (Sexual) | 1 | 1.11 | 0.77 |
Glasses Clothes | 1 | 1.08 | 0.75 |
Quickie Fix Subject of (Sexual) | 1 | 1.08 | 0.75 |
Sitting Sex Subject of (Sexual) | 1 | 1.05 | 0.73 |
Violet Eyes | 1 | 1.04 | 0.72 |
Thigh-high Stockings Clothes | 1 | 1.03 | 0.72 |
Sidehair Hair | 1 | 0.97 | 0.68 |
Doggy Style Subject of (Sexual) | 1 | 0.92 | 0.64 |
Blond Hair | 1 | 0.88 | 0.61 |
Blue Eyes | 1 | 0.80 | 0.55 |
Waist Length+ Hair | 1 | 0.80 | 0.55 |
Young-adult Body | 1 | 0.77 | 0.54 |
Long Hair | 1 | 0.75 | 0.52 |
School Uniform Clothes | 1 | 0.73 | 0.51 |
Teen Body | 1 | 0.61 | 0.42 |
Short Hair | 1 | 0.61 | 0.42 |