Kisaragi Maaya is our protagonist’s (Yuu’s) older sister. She’s beautiful, smart, and super popular at their school to boot. Yuu cherishes his sister more than anything else in the world, and Maaya treasures her little brother more than anything else in the world in return. Maaya always had a knack for teasing Yuu, but at some point, it gets a little out of hand, to the point where her at first innocent teasing becomes flat-out flirtations, slowly leading towards a carnal relationship. Yuu has always been a pushover, and can’t do anything but follow along the path his big sister is creating for the both of them. Maaya’s outgoing personality and charms eventually win the day, and a full-blown sexual relationship starts between the two siblings. This is a slice of life story filled with lust, and worry-free summer days with lots of sex, and an ending full of happiness. [From Daybreak Translations]
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| Name | Characters | Importance | Weight |
|---|---|---|---|
| No Name Role | 4 | 2.10 | 3.37 |
| Honest Personality | 4 | 1.84 | 2.95 |
| Consumption of Porn Engages in (Sexual) | 2 | 2.46 | 2.71 |
| Protective Personality | 4 | 1.67 | 2.69 |
| Sexual Cosplay Engages in (Sexual) | 2 | 2.24 | 2.46 |
| Ghost Member of School Club Role | 1 | 3.52 | 2.44 |
| Not Sexually Involved Engages in (Sexual) | 5 | 1.35 | 2.43 |
| Kouhai Role | 3 | 1.63 | 2.26 |
| Sex in a Vehicle Engages in (Sexual) | 2 | 2.03 | 2.23 |
| Swimming Engages in | 2 | 1.96 | 2.16 |
| Mutual Masturbation Engages in (Sexual) | 2 | 1.94 | 2.13 |
| Masturbation in front of an Audience Engages in (Sexual) | 2 | 1.90 | 2.09 |
| Butt Monkey Role | 1 | 3.01 | 2.08 |
| Discreet Sex Engages in (Sexual) | 2 | 1.86 | 2.04 |
| Bodysponge Subject of (Sexual) | 1 | 2.89 | 2.00 |
| Hidden Eyes | 2 | 1.80 | 1.97 |
| Friendly Personality | 4 | 1.22 | 1.96 |
| Buttjob Subject of (Sexual) | 1 | 2.78 | 1.93 |
| Pajamas Clothes | 2 | 1.75 | 1.92 |
| Deredere Personality | 2 | 1.74 | 1.92 |
| Adult Body | 3 | 1.34 | 1.86 |
| Seduction Subject of | 1 | 2.66 | 1.84 |
| Kind Personality | 5 | 1.03 | 1.84 |
| Massage Engages in | 1 | 2.61 | 1.81 |
| Massage Subject of | 1 | 2.59 | 1.79 |
| Shy Personality | 2 | 1.62 | 1.78 |
| Tutor Role | 1 | 2.55 | 1.77 |
| Coward Personality | 1 | 2.53 | 1.75 |
| Bad Student Role | 1 | 2.49 | 1.73 |
| Sports Swimsuit Clothes | 1 | 2.48 | 1.72 |
| Wake-up Sex Subject of (Sexual) | 1 | 2.48 | 1.72 |
| Sex in Water Engages in (Sexual) | 2 | 1.56 | 1.72 |
| Classmate Role | 3 | 1.23 | 1.70 |
| Homeroom Teacher Role | 1 | 2.45 | 1.70 |
| School Swimming Club Member Role | 1 | 2.44 | 1.69 |
| Baby-doll Clothes | 1 | 2.44 | 1.69 |
| Buttjob Engages in (Sexual) | 1 | 2.39 | 1.66 |
| Bodysponge Engages in (Sexual) | 1 | 2.38 | 1.65 |
| Sister Complex Personality | 1 | 2.38 | 1.65 |
| Swim Shorts Clothes | 1 | 2.37 | 1.64 |
| Wake-up Sex Engages in (Sexual) | 1 | 2.36 | 1.64 |
| Reverse Missionary Engages in (Sexual) | 1 | 2.36 | 1.63 |
| Half-naked Clothes | 1 | 2.34 | 1.62 |
| Incest Engages in (Sexual) | 2 | 1.47 | 1.61 |
| Sexual Fantasy Engages in (Sexual) | 1 | 2.31 | 1.60 |
| Housewife Role | 1 | 2.31 | 1.60 |
| Thong Panties Clothes | 1 | 2.30 | 1.59 |
| Leg Locking During Sex Engages in (Sexual) | 1 | 2.30 | 1.59 |
| Not a Virgin Role | 2 | 1.41 | 1.55 |
| Reverse Cowgirl Engages in (Sexual) | 1 | 2.22 | 1.54 |
| Masturbation Engages in (Sexual) | 2 | 1.40 | 1.54 |
| Sexual Fantasy Subject of (Sexual) | 1 | 2.22 | 1.54 |
| Bathroom Sex Engages in (Sexual) | 2 | 1.39 | 1.52 |
| Gym Shorts Clothes | 1 | 2.20 | 1.52 |
| Seventh Posture Engages in (Sexual) | 1 | 2.19 | 1.52 |
| Seduction Engages in | 1 | 2.18 | 1.51 |
| Footjob Subject of (Sexual) | 1 | 2.18 | 1.51 |
| Charismatic Personality | 1 | 2.16 | 1.50 |
| Boobs on Glass Subject of (Sexual) | 1 | 2.15 | 1.49 |
| Skirt Clothes | 2 | 1.34 | 1.47 |
| Possessive Personality | 1 | 2.12 | 1.47 |
| Tominagi Engages in (Sexual) | 1 | 2.11 | 1.46 |
| Insightful Personality | 1 | 2.10 | 1.45 |
| Honor Student Role | 1 | 2.09 | 1.45 |
| Domestic Partner Role | 1 | 2.08 | 1.44 |
| Brother Complex Personality | 1 | 2.06 | 1.43 |
| Brave Personality | 1 | 2.05 | 1.42 |
| Anilingus Subject of (Sexual) | 1 | 2.05 | 1.42 |
| Hazel Eyes | 1 | 2.04 | 1.41 |
| Sly Personality | 1 | 2.04 | 1.41 |
| Sex on Toilet Engages in (Sexual) | 1 | 2.03 | 1.41 |
| Cuffs Clothes | 1 | 2.03 | 1.41 |
| Butterfly Engages in (Sexual) | 1 | 2.02 | 1.40 |
| Towel Clothes | 1 | 2.01 | 1.40 |
| Anilingus Engages in (Sexual) | 1 | 2.00 | 1.39 |
| Funny Personality | 1 | 2.00 | 1.39 |
| Sex in Public Places Engages in (Sexual) | 2 | 1.26 | 1.38 |
| Sixty-nine Engages in (Sexual) | 2 | 1.26 | 1.38 |
| Cleaning Engages in | 1 | 1.99 | 1.38 |
| High School Student Role | 4 | 0.85 | 1.37 |
| Full Brother Role | 1 | 1.95 | 1.35 |
| Assertive Personality | 1 | 1.94 | 1.34 |
| Sandals Clothes | 1 | 1.93 | 1.34 |
| Friend Role | 2 | 1.20 | 1.32 |
| Younger Brother Role | 1 | 1.90 | 1.32 |
| Quickie Fix Engages in (Sexual) | 1 | 1.88 | 1.30 |
| Cardigan Clothes | 1 | 1.87 | 1.30 |
| Jealous Personality | 1 | 1.87 | 1.30 |
| Black Hair | 4 | 0.81 | 1.30 |
| Boobjob Subject of (Sexual) | 1 | 1.86 | 1.29 |
| Bra Clothes | 1 | 1.86 | 1.29 |
| Yukata Clothes | 1 | 1.85 | 1.28 |
| Pink Rotor Subject of (Sexual) | 1 | 1.84 | 1.27 |
| Outdoor Sex Engages in (Sexual) | 2 | 1.16 | 1.27 |
| Bob Cut Hair | 1 | 1.83 | 1.27 |
| Sitting Sex Engages in (Sexual) | 1 | 1.82 | 1.26 |
| Son Role | 1 | 1.82 | 1.26 |
| Husband Role | 1 | 1.80 | 1.25 |
| Boku Personality | 1 | 1.78 | 1.23 |
| Handjob Subject of (Sexual) | 1 | 1.75 | 1.22 |
| Short Shorts Clothes | 1 | 1.75 | 1.22 |
| Missionary Engages in (Sexual) | 1 | 1.74 | 1.21 |
| Reverse Missionary Subject of (Sexual) | 1 | 1.74 | 1.20 |
| Footjob Engages in (Sexual) | 1 | 1.72 | 1.19 |
| Panties Clothes | 1 | 1.71 | 1.19 |
| Loafers Clothes | 1 | 1.71 | 1.19 |
| Confident Personality | 1 | 1.69 | 1.17 |
| Father Role | 1 | 1.67 | 1.16 |
| Teasing Subject of | 1 | 1.64 | 1.14 |
| Popular Role | 1 | 1.64 | 1.13 |
| Pervert Personality | 1 | 1.63 | 1.13 |
| Reverse Cowgirl Subject of (Sexual) | 1 | 1.63 | 1.13 |
| Maid's Headdress Clothes | 1 | 1.63 | 1.13 |
| Vaginal Fingering Engages in (Sexual) | 1 | 1.61 | 1.12 |
| Senpai Role | 1 | 1.61 | 1.12 |
| Clothing with Ribbons Clothes | 1 | 1.58 | 1.10 |
| Nipple Teasing Subject of (Sexual) | 1 | 1.57 | 1.09 |
| Full Sister Role | 1 | 1.56 | 1.08 |
| Big Breast Sizes Body | 1 | 1.56 | 1.08 |
| Older Sister Role | 1 | 1.56 | 1.08 |
| Teacher Role | 1 | 1.56 | 1.08 |
| Jeans Clothes | 1 | 1.55 | 1.08 |
| Sex at School Engages in (Sexual) | 1 | 1.55 | 1.07 |
| Wife Role | 1 | 1.53 | 1.06 |
| Blowjob Subject of (Sexual) | 1 | 1.52 | 1.05 |
| Maid's Dress Clothes | 1 | 1.51 | 1.05 |
| Choker Clothes | 1 | 1.50 | 1.04 |
| Necklace Clothes | 1 | 1.50 | 1.04 |
| Seventh Posture Subject of (Sexual) | 1 | 1.46 | 1.01 |
| Smart Personality | 1 | 1.46 | 1.01 |
| Mother Role | 1 | 1.46 | 1.01 |
| Daughter Role | 1 | 1.46 | 1.01 |
| Bikini Clothes | 1 | 1.46 | 1.01 |
| Teasing Engages in | 1 | 1.44 | 1.00 |
| Teen Body | 4 | 0.62 | 1.00 |
| Black Eyes | 1 | 1.42 | 0.98 |
| Cooking Engages in | 1 | 1.42 | 0.98 |
| Tank Top Clothes | 1 | 1.41 | 0.98 |
| Tsurime Eyes | 1 | 1.38 | 0.96 |
| Knee-high Socks Clothes | 1 | 1.38 | 0.96 |
| Female Ejaculation Engages in (Sexual) | 1 | 1.36 | 0.95 |
| Tominagi Subject of (Sexual) | 1 | 1.36 | 0.94 |
| Bukkake Subject of (Sexual) | 1 | 1.35 | 0.94 |
| T-shirt Clothes | 1 | 1.31 | 0.91 |
| Ribbon Tie Clothes | 1 | 1.25 | 0.87 |
| Watashi Personality | 1 | 1.25 | 0.87 |
| School Uniform Clothes | 2 | 0.76 | 0.83 |
| Standing Sex Subject of (Sexual) | 1 | 1.18 | 0.81 |
| Butterfly Subject of (Sexual) | 1 | 1.17 | 0.81 |
| Handjob Engages in (Sexual) | 1 | 1.16 | 0.80 |
| Missionary Subject of (Sexual) | 1 | 1.12 | 0.77 |
| Tareme Eyes | 1 | 1.11 | 0.77 |
| Quickie Fix Subject of (Sexual) | 1 | 1.08 | 0.75 |
| Vaginal Fingering Subject of (Sexual) | 1 | 1.08 | 0.75 |
| Boobjob Engages in (Sexual) | 1 | 1.07 | 0.74 |
| Sitting Sex Subject of (Sexual) | 1 | 1.06 | 0.74 |
| Spiky Bangs Hair | 1 | 1.00 | 0.69 |
| Sidehair Hair | 1 | 0.98 | 0.68 |
| Cowgirl Subject of (Sexual) | 1 | 0.95 | 0.66 |
| Straight Hair | 1 | 0.94 | 0.65 |
| Doggy Style Subject of (Sexual) | 1 | 0.92 | 0.64 |
| Slim Body | 2 | 0.58 | 0.63 |
| Virgin Sex Engages in (Sexual) | 1 | 0.85 | 0.59 |
| Blowjob Engages in (Sexual) | 1 | 0.76 | 0.53 |
| Long Hair | 1 | 0.75 | 0.52 |
| Short Hair | 1 | 0.61 | 0.42 |
| Pale Body | 2 | 0.37 | 0.40 |
| 2 | 0.00 | 0.00 |