Minase ── an isolated island due to its poor accessibility. However, the protagonist used to go there a lot in his childhood. After entering medical school, his parents were worried about him losing his edge due to the daily study schedule. They wanted to refresh him. The protagonist comes to the island again after being advised to visit his cousins during his summer vacation. He remembers his childhood with them, and being treated like a real family member. Suiren was beautiful when she was a child, and she was very kind and was like a real sister to him. Shion was like a tomboy little sister and used to follow him around. The protagonist wonders how the two of them have grown up. He can hear their voices afar from their house. Upon his arrival, he reunited with the two grown-up sisters. Suiren has become a gorgeous woman with a beautiful feminine body overflowing with tolerance and kindness. Shion, who has grown into a pretty girl, has a somewhat disgruntled look and only talks to the bare minimum necessary. An older sister who never changes and a younger sister who has changed. Feeling puzzled, as recommended by Suiren, who seems to have been waiting for the main character, the protagonist stay at their house for a while. How will he spend his time with them on the island under the summer sun? [From Getchu]
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| Name | Score | Importance | Weight |
|---|---|---|---|
| Protagonist with Voiced Changeable Names | 3.00 | 3.07 | 9.22 |
| Shimaidon | 3.00 | 2.36 | 7.09 |
| Cousin Romance | 2.83 | 2.39 | 6.77 |
| Island | 3.00 | 1.95 | 5.85 |
| Non-twin Heroine Sisters | 2.80 | 2.00 | 5.60 |
| Cousin Incest | 2.75 | 2.02 | 5.55 |
| Threesome Ending | 3.00 | 1.74 | 5.21 |
| Oneesan-type Heroine | 2.75 | 1.84 | 5.06 |
| Protagonist's Cousin as a Heroine | 2.67 | 1.89 | 5.05 |
| Summer | 3.00 | 1.67 | 5.00 |
| Track Display | 2.00 | 2.40 | 4.80 |
| Armpit Sex | 2.00 | 2.01 | 4.02 |
| Threesome | 2.50 | 1.59 | 3.98 |
| Read Text Marking | 2.00 | 1.84 | 3.69 |
| Sex with Protagonist Only | 3.00 | 1.13 | 3.40 |
| Background Moans | 2.33 | 1.44 | 3.36 |
| Early Sexual Content | 2.67 | 1.23 | 3.29 |
| Heroine with Huge Breasts | 2.33 | 1.40 | 3.27 |
| High Sexual Content | 3.00 | 1.06 | 3.18 |
| Sounds of Copulation | 2.33 | 1.29 | 3.02 |
| Adult Heroine | 2.25 | 1.13 | 2.55 |
| Only Virgin Heroines | 2.33 | 1.09 | 2.54 |
| High School Student Heroine | 2.50 | 0.85 | 2.13 |
| Nukige | 3.00 | 0.65 | 1.96 |
| Heroine with Big Breasts | 2.33 | 0.84 | 1.95 |
| Defloration | 2.50 | 0.77 | 1.92 |
| Nameable Protagonist | 1.80 | 0.91 | 1.64 |
| Male Protagonist | 2.00 | 0.30 | 0.61 |
| ADV | 2.33 | 0.15 | 0.34 |
| 2.00 | 0.00 | 0.00 |
| Name | Characters | Importance | Weight |
|---|---|---|---|
| Cousin Role | 2 | 1.87 | 2.06 |
| Pajamas Clothes | 2 | 1.75 | 1.92 |
| Reverse Missionary Subject of (Sexual) | 2 | 1.74 | 1.91 |
| Geta Clothes | 1 | 2.74 | 1.90 |
| Mobile Phone Items | 2 | 1.71 | 1.88 |
| Camera Items | 1 | 2.54 | 1.76 |
| Naked Shirt Clothes | 1 | 2.52 | 1.75 |
| Clothing with Ribbons Clothes | 2 | 1.59 | 1.75 |
| Armpit Sex Engages in (Sexual) | 1 | 2.49 | 1.73 |
| Sex in Water Engages in (Sexual) | 2 | 1.56 | 1.72 |
| Full Sister Role | 2 | 1.56 | 1.71 |
| Sleeveless Sweater Clothes | 1 | 2.44 | 1.69 |
| Seventh Posture Subject of (Sexual) | 2 | 1.47 | 1.61 |
| Incest Engages in (Sexual) | 2 | 1.47 | 1.61 |
| Bikini Clothes | 2 | 1.45 | 1.60 |
| Bathroom Sex Engages in (Sexual) | 2 | 1.38 | 1.52 |
| Bukkake Subject of (Sexual) | 2 | 1.35 | 1.49 |
| Off-The-Shoulder Shirt Clothes | 1 | 2.14 | 1.49 |
| Sex on Beach Engages in (Sexual) | 1 | 2.14 | 1.48 |
| Consensual Porn Acting Engages in (Sexual) | 1 | 2.09 | 1.45 |
| Sex in a Vehicle Engages in (Sexual) | 1 | 2.02 | 1.40 |
| Belt Clothes | 2 | 1.26 | 1.39 |
| Mutual Masturbation Engages in (Sexual) | 1 | 1.94 | 1.34 |
| Blue Hair | 2 | 1.20 | 1.32 |
| Butterfly Subject of (Sexual) | 2 | 1.17 | 1.29 |
| Yukata Clothes | 1 | 1.86 | 1.29 |
| Group Sex of One Male and Several Females Engages in (Sexual) | 2 | 1.16 | 1.28 |
| Outdoor Sex Engages in (Sexual) | 2 | 1.16 | 1.27 |
| Shirt Clothes | 2 | 1.16 | 1.27 |
| Handjob Engages in (Sexual) | 2 | 1.15 | 1.27 |
| Hair Flower Clothes | 1 | 1.77 | 1.23 |
| Quickie Fix Subject of (Sexual) | 2 | 1.08 | 1.19 |
| Sport Bloomers Clothes | 1 | 1.72 | 1.19 |
| Boobjob Engages in (Sexual) | 2 | 1.07 | 1.18 |
| Vaginal Masturbation Engages in (Sexual) | 1 | 1.64 | 1.13 |
| Reverse Cowgirl Subject of (Sexual) | 1 | 1.63 | 1.13 |
| Kimono Clothes | 1 | 1.57 | 1.09 |
| Older Sister Role | 1 | 1.56 | 1.08 |
| Sidehair Hair | 2 | 0.98 | 1.08 |
| Cowgirl Subject of (Sexual) | 2 | 0.96 | 1.05 |
| Straight Hair | 2 | 0.94 | 1.03 |
| Sailor School Uniform Clothes | 1 | 1.48 | 1.02 |
| Younger Sister Role | 1 | 1.45 | 1.00 |
| Hairpin Clothes | 1 | 1.41 | 0.97 |
| Hair Tie Clothes | 1 | 1.40 | 0.97 |
| Tank Top Clothes | 1 | 1.40 | 0.97 |
| Blunt Bangs Hair | 1 | 1.39 | 0.97 |
| Pleated Skirt Clothes | 1 | 1.39 | 0.96 |
| Tsurime Eyes | 1 | 1.38 | 0.96 |
| Nipple Sucking Subject of (Sexual) | 1 | 1.37 | 0.95 |
| Virgin Sex Engages in (Sexual) | 2 | 0.85 | 0.94 |
| Female Ejaculation Engages in (Sexual) | 1 | 1.35 | 0.94 |
| Skirt Clothes | 1 | 1.34 | 0.93 |
| T-shirt Clothes | 1 | 1.31 | 0.91 |
| Blue Eyes | 2 | 0.81 | 0.88 |
| Sixty-nine Engages in (Sexual) | 1 | 1.26 | 0.88 |
| Sex in Public Places Engages in (Sexual) | 1 | 1.26 | 0.87 |
| Blowjob Engages in (Sexual) | 2 | 0.76 | 0.84 |
| Long Hair | 2 | 0.75 | 0.83 |
| Standing Sex Subject of (Sexual) | 1 | 1.18 | 0.81 |
| Cunnilingus Subject of (Sexual) | 1 | 1.16 | 0.80 |
| Twin Tails Hair | 1 | 1.14 | 0.79 |
| Missionary Subject of (Sexual) | 1 | 1.12 | 0.78 |
| Ponytail Hair | 1 | 1.10 | 0.76 |
| Vaginal Fingering Subject of (Sexual) | 1 | 1.08 | 0.75 |
| Sitting Sex Subject of (Sexual) | 1 | 1.06 | 0.74 |
| Miniskirt Clothes | 1 | 1.06 | 0.74 |
| Doggy Style Subject of (Sexual) | 1 | 0.92 | 0.64 |
| Slim Body | 2 | 0.57 | 0.63 |
| High School Student Role | 1 | 0.86 | 0.60 |
| Young-adult Body | 1 | 0.75 | 0.52 |
| Teen Body | 1 | 0.62 | 0.43 |
| Pale Body | 2 | 0.37 | 0.40 |