Two twins - Haruka and Sora, are going back to their grandfather's house. The two remember their many visits to the house when they were kids. A while ago, they lost their parents in a car accident prompting the move to their grandfather's house... Nao, their old friend, Ryouhei, Haru's classmate, Akira, a miko at a neighboring shrine, Kazuha, Akira's close friend, and Kozue, the class rep, welcome them. Nothing has changed. Good memories and a silent atmosphere heal the sadness... However, the peaceful life gradually changes... A secret promise made a long time ago. A lost treasure. The real reason for moving to the town. Feelings long kept a secret. The story now starts under the summer sun...
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| Name | Characters | Importance | Weight |
|---|---|---|---|
| Tenth Grader Role | 6 | 2.17 | 4.23 |
| Old Type School Swimsuit Clothes | 5 | 2.10 | 3.75 |
| Sex with Protagonist Only Engages in (Sexual) | 7 | 1.66 | 3.46 |
| Strapless Swimsuit Clothes | 2 | 3.14 | 3.45 |
| Loafers Clothes | 6 | 1.71 | 3.32 |
| Poor Role | 3 | 2.26 | 3.13 |
| Viola Items | 1 | 4.11 | 2.85 |
| Piggyback Ride Subject of | 2 | 2.52 | 2.77 |
| Sport Bloomers Clothes | 4 | 1.72 | 2.76 |
| Violist Role | 1 | 3.86 | 2.68 |
| One Piece Swimsuit Clothes | 3 | 1.92 | 2.66 |
| Airhead Personality | 3 | 1.92 | 2.66 |
| Slingback Shoes Clothes | 1 | 3.70 | 2.56 |
| T-shirt Clothes | 6 | 1.31 | 2.55 |
| Pleated Skirt Clothes | 5 | 1.39 | 2.49 |
| Sex at School Engages in (Sexual) | 4 | 1.54 | 2.48 |
| Japanese Traditional Dance Engages in | 1 | 3.49 | 2.42 |
| Lazy Personality | 2 | 2.16 | 2.37 |
| Sundress Clothes | 2 | 2.14 | 2.36 |
| Blouse Clothes | 4 | 1.46 | 2.34 |
| Bikini Clothes | 4 | 1.45 | 2.34 |
| Peep-Toe Shoes Clothes | 1 | 3.37 | 2.34 |
| Mary Jane Clothes | 2 | 2.12 | 2.33 |
| Cooking Engages in | 4 | 1.42 | 2.29 |
| Suitcase Items | 1 | 3.28 | 2.28 |
| Small Breasts Body | 3 | 1.63 | 2.25 |
| Teasing Subject of | 3 | 1.61 | 2.24 |
| Repeater Role | 1 | 3.22 | 2.23 |
| Watashi Personality | 5 | 1.24 | 2.22 |
| Bicycle Items | 1 | 3.19 | 2.21 |
| Classmate Role | 5 | 1.23 | 2.21 |
| Clothing with Ribbons Clothes | 3 | 1.59 | 2.20 |
| Cleaning Engages in | 2 | 1.99 | 2.19 |
| Friendly Personality | 5 | 1.21 | 2.17 |
| Naizuri Subject of (Sexual) | 1 | 3.10 | 2.15 |
| Hard Worker Personality | 3 | 1.54 | 2.13 |
| Voyeurism Subject of (Sexual) | 2 | 1.93 | 2.12 |
| Sandals Clothes | 2 | 1.91 | 2.10 |
| Butterfly Subject of (Sexual) | 5 | 1.17 | 2.10 |
| Vaginal Fingering Subject of (Sexual) | 6 | 1.08 | 2.10 |
| Atashi Personality | 2 | 1.89 | 2.08 |
| Miniskirt Clothes | 6 | 1.06 | 2.07 |
| Straight Hair | 8 | 0.94 | 2.05 |
| Puffy Sleeves Clothes | 2 | 1.84 | 2.03 |
| Mature Personality | 2 | 1.81 | 1.99 |
| Broom Items | 1 | 2.84 | 1.97 |
| Black Eyes | 3 | 1.42 | 1.96 |
| Hairpin Clothes | 3 | 1.41 | 1.95 |
| Tank Top Clothes | 3 | 1.40 | 1.93 |
| Friend Role | 4 | 1.20 | 1.93 |
| Daydreamer Personality | 1 | 2.78 | 1.93 |
| Skirt Suit Clothes | 2 | 1.74 | 1.92 |
| Deredere Personality | 2 | 1.74 | 1.91 |
| Short Shorts Clothes | 2 | 1.74 | 1.91 |
| Nipple Sucking Subject of (Sexual) | 3 | 1.37 | 1.91 |
| Grandson Role | 1 | 2.71 | 1.88 |
| Sun Hat Clothes | 1 | 2.71 | 1.88 |
| Orphan Role | 2 | 1.70 | 1.87 |
| Female Ejaculation Engages in (Sexual) | 3 | 1.35 | 1.87 |
| Turtleneck Dress Clothes | 1 | 2.70 | 1.87 |
| Ahoge Hair | 3 | 1.33 | 1.84 |
| Kind Personality | 5 | 1.02 | 1.83 |
| Spoons Subject of (Sexual) | 2 | 1.67 | 1.83 |
| Ribbon Hair Accessory Clothes | 2 | 1.66 | 1.83 |
| Head of Household Role | 1 | 2.64 | 1.83 |
| Capri Pants Clothes | 1 | 2.62 | 1.82 |
| Same Year Student Role | 1 | 2.58 | 1.79 |
| Naizuri Engages in (Sexual) | 1 | 2.58 | 1.79 |
| Spiky Bangs Hair | 5 | 0.99 | 1.78 |
| Senpai Role | 2 | 1.62 | 1.78 |
| Drinking Engages in | 2 | 1.60 | 1.75 |
| Religion Engages in | 1 | 2.52 | 1.75 |
| Cowgirl Subject of (Sexual) | 5 | 0.96 | 1.71 |
| Nipple Teasing Subject of (Sexual) | 2 | 1.55 | 1.71 |
| School Swimming Club Member Role | 1 | 2.45 | 1.70 |
| Thigh-high Stockings Clothes | 4 | 1.05 | 1.69 |
| Legwear Footjob Engages in (Sexual) | 1 | 2.41 | 1.67 |
| Classic Tsundere Personality | 1 | 2.41 | 1.67 |
| Drunk Sex Engages in (Sexual) | 1 | 2.40 | 1.66 |
| Virgin Sex Engages in (Sexual) | 6 | 0.85 | 1.66 |
| Weakness Subject of | 1 | 2.39 | 1.66 |
| Zouri Clothes | 1 | 2.38 | 1.65 |
| Granddaughter Role | 1 | 2.38 | 1.65 |
| Sister Complex Personality | 1 | 2.38 | 1.65 |
| Sleeveless Dress Clothes | 1 | 2.37 | 1.64 |
| Stuffed Toy Items | 1 | 2.37 | 1.64 |
| Humble Personality | 1 | 2.36 | 1.64 |
| Swim Shorts Clothes | 1 | 2.36 | 1.64 |
| Trousers Clothes | 3 | 1.18 | 1.63 |
| Tie Pin Clothes | 1 | 2.35 | 1.63 |
| Medium Breasts Body | 2 | 1.48 | 1.63 |
| Computering Engages in | 1 | 2.33 | 1.61 |
| Incest Engages in (Sexual) | 2 | 1.47 | 1.61 |
| Outdoor Sex Engages in (Sexual) | 3 | 1.16 | 1.61 |
| Smart Personality | 2 | 1.45 | 1.60 |
| School Uniform Clothes | 7 | 0.77 | 1.59 |
| Class President Role | 1 | 2.29 | 1.59 |
| Blowjob Engages in (Sexual) | 7 | 0.76 | 1.59 |
| Shrug Clothes | 1 | 2.29 | 1.59 |
| Sidehair Hair | 4 | 0.98 | 1.58 |
| Twin Brother Role | 1 | 2.28 | 1.58 |
| Teasing Engages in | 2 | 1.43 | 1.57 |
| Tabi Clothes | 1 | 2.26 | 1.57 |
| Spoons Engages in (Sexual) | 1 | 2.21 | 1.53 |
| Knee-high Socks Clothes | 2 | 1.39 | 1.53 |
| Seventh Posture Engages in (Sexual) | 1 | 2.19 | 1.52 |
| Footjob Subject of (Sexual) | 1 | 2.17 | 1.51 |
| Quickie Fix Subject of (Sexual) | 3 | 1.08 | 1.50 |
| Boobjob Engages in (Sexual) | 3 | 1.07 | 1.49 |
| Shimapan Clothes | 1 | 2.14 | 1.48 |
| Shoulder-length Hair | 4 | 0.92 | 1.48 |
| Illness Subject of | 1 | 2.13 | 1.48 |
| Flustered Personality | 1 | 2.12 | 1.47 |
| Book Items | 1 | 2.12 | 1.47 |
| Voyeurism Engages in (Sexual) | 1 | 2.12 | 1.47 |
| Possessive Personality | 1 | 2.12 | 1.47 |
| White Hair | 2 | 1.33 | 1.47 |
| Sweets Lover Personality | 1 | 2.10 | 1.46 |
| Tominagi Engages in (Sexual) | 1 | 2.10 | 1.46 |
| Insightful Personality | 1 | 2.10 | 1.45 |
| Miko Role | 1 | 2.09 | 1.45 |
| Honor Student Role | 1 | 2.09 | 1.45 |
| Stubble Hair | 1 | 2.09 | 1.45 |
| Shopkeeper Role | 1 | 2.08 | 1.44 |
| Tiny Braid Hair | 1 | 2.08 | 1.44 |
| Curtained Hair | 2 | 1.30 | 1.43 |
| Brother Complex Personality | 1 | 2.06 | 1.43 |
| Reading Engages in | 1 | 2.04 | 1.41 |
| Hime Cut Hair | 1 | 2.03 | 1.41 |
| Ankle Socks Clothes | 1 | 2.02 | 1.40 |
| Butterfly Engages in (Sexual) | 1 | 2.02 | 1.40 |
| Watch Clothes | 1 | 2.00 | 1.39 |
| Sixty-nine Engages in (Sexual) | 2 | 1.26 | 1.39 |
| Funny Personality | 1 | 2.00 | 1.39 |
| Wristband Clothes | 1 | 2.00 | 1.39 |
| Childhood Friend Role | 2 | 1.26 | 1.39 |
| Neighbor Role | 1 | 2.00 | 1.38 |
| Sex in Public Places Engages in (Sexual) | 2 | 1.26 | 1.38 |
| Nipple Teasing Engages in (Sexual) | 1 | 1.99 | 1.38 |
| Yamato Nadeshiko Role | 1 | 1.99 | 1.38 |
| Decorative Belt Clothes | 1 | 1.98 | 1.37 |
| Swimming Engages in | 1 | 1.96 | 1.36 |
| Miko's Dress Clothes | 1 | 1.95 | 1.35 |
| Ojousama Role | 1 | 1.95 | 1.35 |
| Clumsy Personality | 1 | 1.94 | 1.34 |
| Antenna Hair | 1 | 1.94 | 1.34 |
| Shaggy Hair | 1 | 1.92 | 1.33 |
| Schoolmate Role | 1 | 1.91 | 1.32 |
| Slim Body | 9 | 0.57 | 1.32 |
| Slicked Back Hair | 1 | 1.90 | 1.32 |
| Eleventh Grader Role | 1 | 1.88 | 1.30 |
| Quickie Fix Engages in (Sexual) | 1 | 1.88 | 1.30 |
| Twin Braids Hair | 1 | 1.87 | 1.30 |
| Teen Body | 7 | 0.62 | 1.29 |
| Standing Sex Engages in (Sexual) | 1 | 1.86 | 1.29 |
| Black Hair | 4 | 0.80 | 1.29 |
| Standing Sex Subject of (Sexual) | 2 | 1.18 | 1.29 |
| Timid Personality | 1 | 1.86 | 1.29 |
| Boobjob Subject of (Sexual) | 1 | 1.86 | 1.29 |
| Twin Sister Role | 1 | 1.86 | 1.29 |
| Short-tempered Personality | 1 | 1.84 | 1.28 |
| Maid Role | 1 | 1.84 | 1.27 |
| Cunnilingus Subject of (Sexual) | 2 | 1.16 | 1.27 |
| Honest Personality | 1 | 1.83 | 1.27 |
| Strict Personality | 1 | 1.83 | 1.27 |
| Blunt Personality | 1 | 1.82 | 1.26 |
| Sitting Sex Engages in (Sexual) | 1 | 1.82 | 1.26 |
| Brown Eyes | 3 | 0.90 | 1.25 |
| Boku Personality | 1 | 1.77 | 1.23 |
| Pajamas Clothes | 1 | 1.75 | 1.21 |
| Big Breasts Body | 2 | 1.10 | 1.21 |
| Handjob Subject of (Sexual) | 1 | 1.75 | 1.21 |
| Footjob Engages in (Sexual) | 1 | 1.72 | 1.19 |
| Cheerful Personality | 1 | 1.72 | 1.19 |
| Glasses Clothes | 2 | 1.08 | 1.19 |
| Cowgirl Engages in (Sexual) | 1 | 1.71 | 1.19 |
| Proactive Personality | 1 | 1.71 | 1.18 |
| Reserved Personality | 1 | 1.71 | 1.18 |
| Nipple Sucking Engages in (Sexual) | 1 | 1.69 | 1.17 |
| Naive Personality | 1 | 1.69 | 1.17 |
| Sitting Sex Subject of (Sexual) | 2 | 1.06 | 1.17 |
| Carefree Personality | 1 | 1.69 | 1.17 |
| Intake Hair | 1 | 1.69 | 1.17 |
| Doggy Style Engages in (Sexual) | 1 | 1.68 | 1.17 |
| Shorts Clothes | 1 | 1.68 | 1.16 |
| Stubborn Personality | 1 | 1.67 | 1.16 |
| Parted to Side Hair | 2 | 1.04 | 1.14 |
| Popular Role | 1 | 1.64 | 1.14 |
| Vaginal Masturbation Engages in (Sexual) | 1 | 1.64 | 1.13 |
| Waist Length+ Hair | 3 | 0.82 | 1.13 |
| Maid's Headdress Clothes | 1 | 1.63 | 1.13 |
| No Bangs Hair | 1 | 1.63 | 1.13 |
| Shy Personality | 1 | 1.62 | 1.12 |
| Vaginal Fingering Engages in (Sexual) | 1 | 1.61 | 1.12 |
| Grey Eyes | 1 | 1.60 | 1.11 |
| Apron Clothes | 1 | 1.59 | 1.10 |
| University Student Role | 1 | 1.58 | 1.09 |
| Kimono Clothes | 1 | 1.57 | 1.09 |
| Ore Personality | 1 | 1.57 | 1.09 |
| Cunnilingus Engages in (Sexual) | 1 | 1.55 | 1.07 |
| Refined Personality | 1 | 1.54 | 1.07 |
| Blowjob Subject of (Sexual) | 1 | 1.52 | 1.05 |
| Maid's Dress Clothes | 1 | 1.51 | 1.05 |
| Necklace Clothes | 1 | 1.50 | 1.04 |
| Seventh Posture Subject of (Sexual) | 1 | 1.47 | 1.02 |
| Doggy Style Subject of (Sexual) | 2 | 0.92 | 1.02 |
| Pantyhose Clothes | 1 | 1.43 | 0.99 |
| Blunt Bangs Hair | 1 | 1.39 | 0.97 |
| Not Sexually Involved Engages in | 1 | 1.35 | 0.94 |
| Tominagi Subject of (Sexual) | 1 | 1.35 | 0.94 |
| Wavy Hair | 1 | 1.35 | 0.94 |
| Red Hair | 1 | 1.32 | 0.92 |
| Belt Clothes | 1 | 1.26 | 0.88 |
| Pale Body | 9 | 0.37 | 0.84 |
| Ribbon Hair Tie Clothes | 1 | 1.20 | 0.83 |
| Young-adult Body | 2 | 0.75 | 0.83 |
| Handjob Engages in (Sexual) | 1 | 1.15 | 0.80 |
| Twin Tails Hair | 1 | 1.14 | 0.79 |
| Necktie Clothes | 1 | 1.12 | 0.77 |
| Tareme Eyes | 1 | 1.11 | 0.77 |
| Brown Hair | 2 | 0.69 | 0.75 |
| Violet Eyes | 1 | 1.05 | 0.73 |
| Short Hair | 2 | 0.61 | 0.67 |
| Blue Eyes | 1 | 0.81 | 0.56 |