Riku is back to the isolated island where he was born and grown up. His parents passed away in a ferryboat accident when he was a kid and he was put in an orphanage. He meets Nanase and Kazusa, his old friends, and he temporarily stays at Nanase's house. He meets Toko, president of the local history club, and Sayaka, a mysterious girl. He gradually gets to know various secrets of the island as he talks with them.... [Edited from ErogeShop]
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| Name | Characters | Importance | Weight |
|---|---|---|---|
| Gang Rape Subject of (Sexual) | 7 | 1.89 | 3.93 |
| Double Penetration (Group Sex) Subject of (Sexual) | 7 | 1.65 | 3.43 |
| Double Handjob Engages in (Sexual) | 5 | 1.89 | 3.39 |
| Spit-roast Subject of (Sexual) | 5 | 1.75 | 3.13 |
| Bukkake Subject of (Sexual) | 8 | 1.35 | 2.96 |
| Group Sex Engages in (Sexual) | 6 | 1.51 | 2.95 |
| Rope Bondage Subject of (Sexual) | 4 | 1.67 | 2.69 |
| Collar Clothes | 4 | 1.66 | 2.67 |
| Mysterious Personality | 3 | 1.69 | 2.34 |
| Twin Blowjob Engages in (Sexual) | 4 | 1.45 | 2.33 |
| Suspension Bondage Subject of (Sexual) | 2 | 2.11 | 2.32 |
| Latex Gloves Clothes | 1 | 3.00 | 2.08 |
| Orgasm Denial Engages in (Sexual) | 1 | 2.78 | 1.93 |
| Armpit Licking Subject of (Sexual) | 1 | 2.70 | 1.87 |
| Outdoor Sex Engages in (Sexual) | 4 | 1.16 | 1.86 |
| Popular Role | 2 | 1.64 | 1.80 |
| Maid's Headdress Clothes | 2 | 1.62 | 1.79 |
| School Sports Club Member Role | 1 | 2.56 | 1.77 |
| Senpai Role | 2 | 1.61 | 1.77 |
| Sex in Classroom Engages in (Sexual) | 2 | 1.61 | 1.76 |
| Sex in Public Places Engages in (Sexual) | 3 | 1.26 | 1.74 |
| Bondage Sex Subject of (Sexual) | 2 | 1.58 | 1.73 |
| Armpit Sex Engages in (Sexual) | 1 | 2.48 | 1.72 |
| Non-consensual Porn Acting Subject of (Sexual) | 1 | 2.37 | 1.65 |
| Student Club Member Role | 1 | 2.33 | 1.61 |
| Tanline Body | 1 | 2.26 | 1.57 |
| Athletics Engages in | 1 | 2.25 | 1.56 |
| Eyepatch Clothes | 1 | 2.25 | 1.56 |
| Cowgirl Subject of (Sexual) | 4 | 0.95 | 1.53 |
| Masturbation Engages in (Sexual) | 2 | 1.39 | 1.53 |
| Mouth Gag Subject of (Sexual) | 1 | 2.14 | 1.48 |
| Pink Hair | 2 | 1.33 | 1.46 |
| Half-orphan Role | 1 | 2.11 | 1.46 |
| Brave Personality | 1 | 2.05 | 1.42 |
| Hime Cut Hair | 1 | 2.02 | 1.40 |
| Anal Beads Subject of (Sexual) | 1 | 2.01 | 1.39 |
| Childhood Friend Role | 2 | 1.26 | 1.38 |
| Virgin Sex Engages in (Sexual) | 4 | 0.85 | 1.37 |
| Blowjob Engages in (Sexual) | 5 | 0.76 | 1.36 |
| Swimming Engages in | 1 | 1.96 | 1.36 |
| Piledriver Subject of (Sexual) | 1 | 1.94 | 1.35 |
| Mutual Masturbation Engages in (Sexual) | 1 | 1.94 | 1.34 |
| One Piece Swimsuit Clothes | 1 | 1.92 | 1.33 |
| Violet Hair | 2 | 1.19 | 1.31 |
| Anal Sex Subject of (Sexual) | 2 | 1.19 | 1.31 |
| Tsundere Personality | 1 | 1.87 | 1.30 |
| Timid Personality | 1 | 1.86 | 1.29 |
| Standing Sex Subject of (Sexual) | 2 | 1.18 | 1.29 |
| Sexual Blindfold Subject of (Sexual) | 1 | 1.85 | 1.29 |
| Shoulder-length Hair | 3 | 0.92 | 1.27 |
| Handjob Engages in (Sexual) | 2 | 1.16 | 1.27 |
| Braid Hair | 1 | 1.78 | 1.23 |
| Reverse Missionary Subject of (Sexual) | 1 | 1.74 | 1.20 |
| Footjob Engages in (Sexual) | 1 | 1.72 | 1.19 |
| Quickie Fix Subject of (Sexual) | 2 | 1.08 | 1.19 |
| Reserved Personality | 1 | 1.71 | 1.19 |
| Boobjob Engages in (Sexual) | 2 | 1.07 | 1.17 |
| Sitting Sex Subject of (Sexual) | 2 | 1.06 | 1.17 |
| Olive Body | 1 | 1.66 | 1.15 |
| Violet Eyes | 2 | 1.05 | 1.15 |
| Reverse Cowgirl Subject of (Sexual) | 1 | 1.63 | 1.13 |
| Blue Eyes | 3 | 0.80 | 1.11 |
| Lactation Engages in | 1 | 1.59 | 1.10 |
| Sex in Water Engages in (Sexual) | 1 | 1.56 | 1.08 |
| Teacher Role | 1 | 1.56 | 1.08 |
| Cunnilingus Engages in (Sexual) | 1 | 1.55 | 1.08 |
| Energetic Personality | 1 | 1.52 | 1.05 |
| Maid's Dress Clothes | 1 | 1.51 | 1.05 |
| Sex in Front of an Audience Engages in (Sexual) | 1 | 1.50 | 1.04 |
| Headband Clothes | 1 | 1.45 | 1.01 |
| Bathroom Sex Engages in (Sexual) | 1 | 1.39 | 0.96 |
| Tsurime Eyes | 1 | 1.38 | 0.96 |
| Nipple Sucking Subject of (Sexual) | 1 | 1.38 | 0.96 |
| Hosome Eyes | 1 | 1.37 | 0.95 |
| Pubic Hair Hair | 1 | 1.34 | 0.93 |
| Curtained Hair | 1 | 1.30 | 0.90 |
| Waist Length+ Hair | 2 | 0.81 | 0.89 |
| Parted in Middle Hair | 1 | 1.25 | 0.87 |
| Friend Role | 1 | 1.20 | 0.83 |
| Red Eyes | 1 | 1.20 | 0.83 |
| Blue Hair | 1 | 1.19 | 0.83 |
| Butterfly Subject of (Sexual) | 1 | 1.17 | 0.81 |
| Twin Tails Hair | 1 | 1.13 | 0.78 |
| Missionary Subject of (Sexual) | 1 | 1.12 | 0.77 |
| Glasses Clothes | 1 | 1.08 | 0.75 |
| Vaginal Fingering Subject of (Sexual) | 1 | 1.08 | 0.75 |
| Kind Personality | 1 | 1.03 | 0.71 |
| Green Eyes | 1 | 1.02 | 0.70 |
| Short Hair | 2 | 0.61 | 0.67 |
| Blond Hair | 1 | 0.89 | 0.62 |
| Black Hair | 1 | 0.80 | 0.56 |
| Long Hair | 1 | 0.75 | 0.52 |
| Brown Hair | 1 | 0.68 | 0.47 |