The protagonist visits his childhood friend Kirara at the prestigious Extraordinary Science Laboratory, or Exlab. On one of her lab's table lies a mysterious and suspicious-looking device. As the protag activates the machine, it turns out it actually is a mechanism capable of changing the gender of a person!
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| Name | Score | Importance | Weight |
|---|---|---|---|
| Sex Change | 3.00 | 2.23 | 6.69 |
| Genderbent Sex | 2.67 | 2.28 | 6.08 |
| School Life Comedy | 2.75 | 1.84 | 5.07 |
| Scientist Heroine | 2.00 | 2.32 | 4.64 |
| Relationship Chart | 2.00 | 2.20 | 4.40 |
| Genius Heroine | 2.40 | 1.77 | 4.24 |
| Student Protagonist | 2.60 | 1.26 | 3.28 |
| Harem Ending | 2.25 | 1.41 | 3.17 |
| Shy Heroine | 1.80 | 1.70 | 3.06 |
| Teacher Heroine | 2.20 | 1.37 | 3.01 |
| Student Heroine | 2.60 | 1.00 | 2.59 |
| Sounds of Copulation | 2.00 | 1.29 | 2.58 |
| Protagonist's Childhood Friend as a Heroine | 2.00 | 1.14 | 2.28 |
| Heroine with Glasses | 2.00 | 1.11 | 2.22 |
| Lesbian Heroine | 1.20 | 1.82 | 2.18 |
| Hetare Protagonist | 1.00 | 2.17 | 2.17 |
| Lesbian Sex | 1.75 | 1.15 | 2.01 |
| Other Perspectives | 1.67 | 1.13 | 1.89 |
| Multiple Endings | 2.60 | 0.67 | 1.74 |
| Breaking the Fourth Wall | 1.00 | 1.74 | 1.74 |
| Heroine with Big Breasts | 2.00 | 0.84 | 1.67 |
| Sexual Content | 1.67 | 0.63 | 1.06 |
| Boobjob | 0.75 | 1.33 | 1.00 |
| ADV | 2.60 | 0.14 | 0.38 |
| Name | Characters | Importance | Weight |
|---|---|---|---|
| Sex Change (Female to Male) Subject of | 6 | 3.78 | 7.36 |
| Genderbent Sex Engages in (Sexual) | 5 | 3.11 | 5.58 |
| Sex Change (Male to Female) Subject of | 4 | 3.01 | 4.85 |
| Kemonomimi Hat Clothes | 2 | 2.63 | 2.89 |
| Lab Coat Clothes | 4 | 1.79 | 2.89 |
| Hair Beads Hair | 2 | 2.53 | 2.78 |
| Androgynous Body | 2 | 2.37 | 2.60 |
| Cardigan Clothes | 3 | 1.87 | 2.60 |
| Scientist Role | 2 | 2.27 | 2.50 |
| Braid Hair | 3 | 1.78 | 2.47 |
| Sexual Harassment Subject of | 2 | 2.22 | 2.44 |
| Spoons Engages in (Sexual) | 2 | 2.21 | 2.43 |
| Medical Doctor Role | 2 | 2.08 | 2.29 |
| Sex in a Vehicle Engages in (Sexual) | 2 | 2.03 | 2.23 |
| Skirt Clothes | 4 | 1.34 | 2.15 |
| Masturbation with Water Engages in (Sexual) | 1 | 3.04 | 2.11 |
| Unarmed Fighting Engages in | 2 | 1.88 | 2.07 |
| Unusual Hair Ornaments Clothes | 2 | 1.88 | 2.06 |
| Childhood Friend Role | 4 | 1.26 | 2.03 |
| Tareme Eyes | 5 | 1.11 | 1.98 |
| Beaded Necklace Clothes | 1 | 2.84 | 1.97 |
| Cowgirl Engages in (Sexual) | 2 | 1.71 | 1.88 |
| Loose Clothes | 1 | 2.70 | 1.87 |
| Straight Hair | 6 | 0.94 | 1.84 |
| Ahoge Hair | 3 | 1.32 | 1.83 |
| Popular Role | 2 | 1.64 | 1.80 |
| Necktie Clothes | 4 | 1.12 | 1.80 |
| Pink Eyes | 2 | 1.62 | 1.78 |
| Shy Personality | 2 | 1.62 | 1.78 |
| Vaginal Fingering Engages in (Sexual) | 2 | 1.61 | 1.77 |
| Ponytail Hair | 4 | 1.10 | 1.77 |
| Apron Clothes | 2 | 1.59 | 1.74 |
| Ribbon Tie Clothes | 3 | 1.25 | 1.74 |
| Kemonomimi Hair | 1 | 2.49 | 1.73 |
| Cunnilingus Engages in (Sexual) | 2 | 1.55 | 1.70 |
| Ribbon Headband Clothes | 1 | 2.45 | 1.70 |
| Amber Eyes | 4 | 1.03 | 1.66 |
| Violet Hair | 3 | 1.20 | 1.66 |
| Trousers Clothes | 3 | 1.19 | 1.64 |
| Student Role | 2 | 1.49 | 1.64 |
| Pinafore Dress Clothes | 1 | 2.35 | 1.63 |
| Big Breasts Body | 3 | 1.13 | 1.56 |
| Hair Tie Clothes | 2 | 1.41 | 1.55 |
| Masturbation Engages in (Sexual) | 2 | 1.40 | 1.54 |
| Lesbian Sex Engages in (Sexual) | 2 | 1.38 | 1.51 |
| School Uniform Clothes | 6 | 0.76 | 1.47 |
| Hidden Vibrator Subject of (Sexual) | 1 | 2.12 | 1.47 |
| White Hair | 2 | 1.33 | 1.47 |
| Red Hair | 2 | 1.32 | 1.45 |
| Short Body | 1 | 2.07 | 1.43 |
| Curtained Hair | 2 | 1.30 | 1.43 |
| Cross Necklace Clothes | 1 | 2.05 | 1.42 |
| Sex in Public Places Engages in (Sexual) | 2 | 1.26 | 1.38 |
| Sixty-nine Engages in (Sexual) | 2 | 1.26 | 1.38 |
| Turtleneck Shirt Clothes | 1 | 1.98 | 1.38 |
| Parted in Middle Hair | 2 | 1.25 | 1.37 |
| Teen Body | 8 | 0.62 | 1.36 |
| Blazer School Uniform Clothes | 1 | 1.90 | 1.32 |
| Red Eyes | 2 | 1.20 | 1.31 |
| Blue Hair | 2 | 1.19 | 1.31 |
| Ribbon Hair Tie Clothes | 2 | 1.19 | 1.31 |
| Multiple Penetration Subject of (Sexual) | 1 | 1.88 | 1.30 |
| Bra Clothes | 1 | 1.86 | 1.29 |
| Homosexual Role | 1 | 1.83 | 1.27 |
| Eye Covering Hair | 1 | 1.80 | 1.25 |
| Hidden Eyes | 1 | 1.80 | 1.25 |
| Formal Shirt Clothes | 1 | 1.73 | 1.20 |
| Glasses Clothes | 2 | 1.08 | 1.19 |
| Miniskirt Clothes | 2 | 1.06 | 1.17 |
| Spoons Subject of (Sexual) | 1 | 1.67 | 1.16 |
| Parted to Side Hair | 2 | 1.05 | 1.15 |
| Double Penetration (Group Sex) Subject of (Sexual) | 1 | 1.65 | 1.14 |
| Sweater Clothes | 1 | 1.63 | 1.13 |
| Waist Length+ Hair | 3 | 0.81 | 1.12 |
| Slim Body | 6 | 0.58 | 1.12 |
| Older Sister Role | 1 | 1.56 | 1.08 |
| Sidehair Hair | 2 | 0.98 | 1.08 |
| Vest Clothes | 1 | 1.52 | 1.06 |
| Group Sex Engages in (Sexual) | 1 | 1.52 | 1.05 |
| Blowjob Subject of (Sexual) | 1 | 1.52 | 1.05 |
| Medium Breasts Body | 1 | 1.51 | 1.05 |
| Tank Top Clothes | 1 | 1.41 | 0.98 |
| Tsurime Eyes | 1 | 1.38 | 0.96 |
| Not Sexually Involved Engages in (Sexual) | 1 | 1.35 | 0.94 |
| Blue Eyes | 2 | 0.80 | 0.88 |
| Pale Body | 10 | 0.37 | 0.88 |
| Long Hair | 2 | 0.75 | 0.82 |
| Cunnilingus Subject of (Sexual) | 1 | 1.16 | 0.81 |
| Missionary Subject of (Sexual) | 1 | 1.12 | 0.77 |
| Brown Hair | 2 | 0.68 | 0.75 |
| Quickie Fix Subject of (Sexual) | 1 | 1.08 | 0.75 |
| Vaginal Fingering Subject of (Sexual) | 1 | 1.08 | 0.75 |
| Thigh-high Stockings Clothes | 1 | 1.04 | 0.72 |
| Short Hair | 2 | 0.61 | 0.67 |
| Cowgirl Subject of (Sexual) | 1 | 0.95 | 0.66 |
| Shoulder-length Hair | 1 | 0.92 | 0.64 |
| Blowjob Engages in (Sexual) | 1 | 0.76 | 0.53 |
| Young-adult Body | 1 | 0.76 | 0.53 |