Remake of the first In'youchuu. The story starts at the office of the demon hunter company, the "Black Cat Brigade". A phone call informs them of a case regarding a haunted school, the case sounds simple and since Mikoto is afraid of ghosts and Yamato is too much of a trouble maker, Takeru decides to take care of the case by herself. One week passes and Takeru has interrupted all communications, which is very unlike her, so Mikoto and Takeru decide to go looking for her at the school. Once there they find a pretty normal situation but no trace of Takeru, so they decide to act as students, with permission from the principal, to look for her without raising suspicions. They also meet with Sui, Yamato's childhood friend who clearly has feelings for him, who says she met Takeru right before she disappeared. It quickly becomes clear that something strange is going on in this seemingly peaceful and respectful private institute in the middle of the mountains....
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| Name | Characters | Importance | Weight |
|---|---|---|---|
| Navel Monster Birth Engages in | 3 | 4.15 | 5.75 |
| Anal Monster Birth Engages in | 4 | 3.38 | 5.45 |
| Prolapse Subject of (Sexual) | 4 | 3.20 | 5.15 |
| Grotesque Body Modification Subject of (Sexual) | 4 | 3.06 | 4.93 |
| Sex with Insects Engages in (Sexual) | 3 | 3.51 | 4.86 |
| Rape under Influence Subject of (Sexual) | 3 | 3.30 | 4.58 |
| Vaginal Multiple Tentacle Penetration Subject of (Sexual) | 4 | 2.77 | 4.45 |
| Nipple Insertion Subject of (Sexual) | 5 | 2.44 | 4.38 |
| Monster Birth Engages in | 5 | 2.44 | 4.37 |
| Anal Multiple Tentacle Penetration Subject of (Sexual) | 3 | 3.07 | 4.25 |
| Nipple Monster Birth Engages in | 2 | 3.87 | 4.25 |
| Vaginal + Anal Tentacle Penetration Subject of (Sexual) | 5 | 2.37 | 4.24 |
| Sensual Biting Subject of (Sexual) | 3 | 2.95 | 4.10 |
| Vaginal Fisting Subject of (Sexual) | 4 | 2.47 | 3.97 |
| Anal Gaping Engages in (Sexual) | 4 | 2.37 | 3.81 |
| Ass to Mouth Subject of (Sexual) | 2 | 3.45 | 3.79 |
| Erotic Mind Control Subject of (Sexual) | 3 | 2.65 | 3.68 |
| Grotesque Holed Nipples Subject of (Sexual) | 2 | 3.34 | 3.67 |
| Inflated Belly Subject of (Sexual) | 5 | 2.04 | 3.66 |
| Scat Engages in (Sexual) | 4 | 2.19 | 3.52 |
| Urethral Intercourse Subject of (Sexual) | 2 | 3.19 | 3.51 |
| Fisting Engages in (Sexual) | 2 | 3.19 | 3.50 |
| Electric Shock (BDSM) Subject of (Sexual) | 3 | 2.53 | 3.50 |
| Vaginal Gaping Engages in (Sexual) | 5 | 1.95 | 3.49 |
| Childbirth Engages in | 3 | 2.48 | 3.44 |
| Breast Expansion Subject of | 3 | 2.40 | 3.33 |
| Enema Subject of (Sexual) | 4 | 2.02 | 3.24 |
| Breast Torture Subject of (Sexual) | 2 | 2.92 | 3.21 |
| Huge Insertion Subject of (Sexual) | 3 | 2.31 | 3.20 |
| Vaginal + Anal Penetration Subject of (Sexual) | 3 | 2.30 | 3.19 |
| All the Way Through Subject of (Sexual) | 2 | 2.87 | 3.15 |
| Milking (Sexual) Subject of (Sexual) | 3 | 2.20 | 3.05 |
| Pissing Subject of (Sexual) | 3 | 2.18 | 3.03 |
| Sex on Beach Engages in (Sexual) | 3 | 2.15 | 2.98 |
| Blowjob on Tentacle Engages in (Sexual) | 2 | 2.63 | 2.89 |
| Non-consensual Sex with Tentacles Engages in (Sexual) | 4 | 1.78 | 2.87 |
| Gokkun Engages in (Sexual) | 3 | 2.04 | 2.83 |
| Mindbreak Subject of (Sexual) | 3 | 2.03 | 2.82 |
| Spit-roast Subject of (Sexual) | 4 | 1.75 | 2.81 |
| Speculum (Sexual) Subject of (Sexual) | 2 | 2.54 | 2.79 |
| Sex with Others Engages in (Sexual) | 3 | 1.99 | 2.76 |
| Group Sex of One Female and Several Males Engages in (Sexual) | 4 | 1.70 | 2.74 |
| Adult Breast Feeding (obsolete) Engages in (Sexual) | 2 | 2.49 | 2.73 |
| Double Penetration (Group Sex) Subject of (Sexual) | 4 | 1.65 | 2.65 |
| Foot Insertion Subject of (Sexual) | 1 | 3.76 | 2.60 |
| Lactation Engages in | 4 | 1.59 | 2.56 |
| Pink Rotor Subject of (Sexual) | 3 | 1.84 | 2.55 |
| Gang Bang Subject of (Sexual) | 2 | 2.31 | 2.53 |
| Nipple Teasing Subject of (Sexual) | 4 | 1.57 | 2.53 |
| Deepthroat Engages in (Sexual) | 3 | 1.80 | 2.49 |
| No-dachi Items | 1 | 3.57 | 2.47 |
| Vaginal + Anal Fisting Subject of (Sexual) | 1 | 3.50 | 2.42 |
| Adult Breast Feeding (obsolete) Subject of (Sexual) | 1 | 3.50 | 2.42 |
| Torn Pantyhose (damaged) Clothes | 2 | 2.20 | 2.42 |
| Navel Penetration Subject of (Sexual) | 1 | 3.46 | 2.40 |
| Petplay Subject of (Sexual) | 2 | 2.10 | 2.31 |
| Unbirthing Subject of (Sexual) | 1 | 3.33 | 2.31 |
| Bloody Sex Subject of (Sexual) | 1 | 3.31 | 2.30 |
| Slave Collar Clothes | 2 | 2.09 | 2.30 |
| Coprophagia Subject of (Sexual) | 1 | 3.31 | 2.29 |
| Milking (Sexual) Engages in (Sexual) | 1 | 3.27 | 2.27 |
| Anal Multiple Penetration Subject of (Sexual) | 1 | 3.27 | 2.27 |
| Pregnancy Subject of | 4 | 1.40 | 2.26 |
| Trampling Subject of (Sexual) | 1 | 3.12 | 2.16 |
| Human Branding Subject of | 1 | 3.11 | 2.16 |
| Scar Body | 2 | 1.95 | 2.14 |
| Pregnant Sex Engages in (Sexual) | 3 | 1.53 | 2.13 |
| Food Gokkun Engages in (Sexual) | 1 | 3.05 | 2.12 |
| Stuck in Meatwall Subject of (Sexual) | 1 | 3.04 | 2.11 |
| Group Sex of Multiple Females and Males Engages in (Sexual) | 2 | 1.91 | 2.10 |
| Double Handjob Engages in (Sexual) | 2 | 1.89 | 2.08 |
| Vaginal Multiple Penetration Subject of (Sexual) | 1 | 3.00 | 2.08 |
| Internal Pissing Subject of (Sexual) | 1 | 3.00 | 2.08 |
| Stethoscope Items | 1 | 2.98 | 2.07 |
| Tailjob Subject of (Sexual) | 1 | 2.97 | 2.06 |
| One-eyed Eyes | 1 | 2.96 | 2.05 |
| Streetwise Personality | 1 | 2.96 | 2.05 |
| Twin Sister Role | 2 | 1.86 | 2.04 |
| Linked Piercings Body | 1 | 2.94 | 2.04 |
| Pissing Engages in (Sexual) | 3 | 1.47 | 2.03 |
| Piercing Torture (BDSM) Subject of (Sexual) | 1 | 2.90 | 2.01 |
| Pantyhose Clothes | 3 | 1.42 | 1.98 |
| Vaginal Multiple Objects Insertion Subject of (Sexual) | 1 | 2.83 | 1.96 |
| Autobukkake Subject of (Sexual) | 1 | 2.81 | 1.95 |
| Tsurime Eyes | 3 | 1.38 | 1.92 |
| Nipple Sucking Subject of (Sexual) | 3 | 1.38 | 1.91 |
| Female Ejaculation Engages in (Sexual) | 3 | 1.36 | 1.89 |
| Anal Fingering Subject of (Sexual) | 2 | 1.71 | 1.88 |
| Bukkake Subject of (Sexual) | 3 | 1.35 | 1.87 |
| Outdoor Sex Engages in (Sexual) | 4 | 1.16 | 1.86 |
| Lace Garter Belt Stockings Clothes | 1 | 2.63 | 1.82 |
| Ribbon Hair Accessory Clothes | 2 | 1.66 | 1.82 |
| Public Use (Choukyou or Non-Consensual) Subject of (Sexual) | 1 | 2.60 | 1.80 |
| Vaginal Fingering Engages in (Sexual) | 2 | 1.61 | 1.77 |
| Feet Licking Engages in (Sexual) | 1 | 2.54 | 1.76 |
| Vaginal Fingering Subject of (Sexual) | 4 | 1.08 | 1.74 |
| Kemonomimi Hair | 1 | 2.49 | 1.73 |
| Rape Subject of (Sexual) | 2 | 1.57 | 1.72 |
| School Nurse Role | 1 | 2.46 | 1.71 |
| Blowbang Engages in (Sexual) | 1 | 2.43 | 1.69 |
| Non-consensual Erotic Humiliation Subject of (Sexual) | 1 | 2.43 | 1.69 |
| Blowjob Subject of (Sexual) | 2 | 1.52 | 1.67 |
| Crotchless Panties Clothes | 1 | 2.40 | 1.67 |
| Medium Breasts Body | 2 | 1.51 | 1.66 |
| Open Cup Bra Clothes | 1 | 2.38 | 1.65 |
| Anal Sex Subject of (Sexual) | 3 | 1.19 | 1.65 |
| Sex in Front of an Audience Engages in (Sexual) | 2 | 1.50 | 1.65 |
| Non-consensual Porn Acting Subject of (Sexual) | 1 | 2.37 | 1.65 |
| Piss Drinking Subject of (Sexual) | 1 | 2.36 | 1.64 |
| Wax Play Subject of (Sexual) | 1 | 2.35 | 1.63 |
| Deepthroat Subject of (Sexual) | 1 | 2.35 | 1.63 |
| French Kiss Engages in (Sexual) | 2 | 1.48 | 1.62 |
| Penis Growth Subject of | 1 | 2.33 | 1.62 |
| Incest Engages in (Sexual) | 2 | 1.47 | 1.61 |
| Cunnilingus Subject of (Sexual) | 3 | 1.16 | 1.61 |
| Bikini Clothes | 2 | 1.46 | 1.60 |
| Pissing on Others Engages in (Sexual) | 1 | 2.27 | 1.57 |
| Vaginal + Anal Object Insertion Subject of (Sexual) | 1 | 2.25 | 1.56 |
| Jacket Clothes | 2 | 1.42 | 1.56 |
| V Bangs Hair | 2 | 1.41 | 1.55 |
| Necktie Clothes | 3 | 1.12 | 1.55 |
| Cat Role | 1 | 2.22 | 1.54 |
| Tareme Eyes | 3 | 1.11 | 1.53 |
| Lesbian Sex Engages in (Sexual) | 2 | 1.38 | 1.52 |
| Body Writing Subject of (Sexual) | 1 | 2.18 | 1.51 |
| Sex with Monsters Engages in (Sexual) | 1 | 2.17 | 1.50 |
| Slit Pupils Eyes | 1 | 2.16 | 1.50 |
| Quickie Fix Subject of (Sexual) | 3 | 1.08 | 1.50 |
| Bell (accessory) Clothes | 1 | 2.16 | 1.50 |
| Nipple Piercing Body | 1 | 2.16 | 1.50 |
| Torn Clothing Clothes | 1 | 2.16 | 1.50 |
| Whipping (BDSM) Subject of (Sexual) | 1 | 2.16 | 1.49 |
| Tominagi Subject of (Sexual) | 2 | 1.36 | 1.49 |
| Condom Sex Engages in (Sexual) | 1 | 2.14 | 1.49 |
| Mary Jane Clothes | 1 | 2.12 | 1.47 |
| Suspension Bondage Subject of (Sexual) | 1 | 2.11 | 1.46 |
| Ahegao Engages in (Sexual) | 2 | 1.32 | 1.45 |
| Old Type School Swimsuit Clothes | 1 | 2.09 | 1.45 |
| Flat Chest Body | 1 | 2.09 | 1.45 |
| Fighting Engages in | 2 | 1.29 | 1.42 |
| Sex on Toilet Engages in (Sexual) | 1 | 2.03 | 1.41 |
| Furry Tail Body | 1 | 2.03 | 1.40 |
| Nipple Teasing Engages in (Sexual) | 1 | 2.01 | 1.39 |
| Anal Beads Subject of (Sexual) | 1 | 2.01 | 1.39 |
| Yamato Nadeshiko Role | 1 | 2.00 | 1.38 |
| Facesitting Engages in (Sexual) | 1 | 1.97 | 1.37 |
| Erotic Spanking Subject of (Sexual) | 1 | 1.96 | 1.36 |
| Clumsy Personality | 1 | 1.93 | 1.34 |
| One Piece Swimsuit Clothes | 1 | 1.92 | 1.33 |
| Masturbation in front of an Audience Engages in (Sexual) | 1 | 1.90 | 1.32 |
| Sexual Blindfold Subject of (Sexual) | 1 | 1.85 | 1.29 |
| Shirt Clothes | 2 | 1.16 | 1.27 |
| Younger Appearance Body | 1 | 1.82 | 1.26 |
| Lab Coat Clothes | 1 | 1.80 | 1.24 |
| Big Breasts Body | 2 | 1.13 | 1.24 |
| Twin Boobjob Engages in (Sexual) | 1 | 1.77 | 1.23 |
| Missionary Subject of (Sexual) | 2 | 1.12 | 1.23 |
| Blowjob Engages in (Sexual) | 4 | 0.76 | 1.22 |
| Skirt Suit Clothes | 1 | 1.74 | 1.21 |
| Missionary Engages in (Sexual) | 1 | 1.74 | 1.21 |
| Reverse Missionary Subject of (Sexual) | 1 | 1.74 | 1.20 |
| Teal Eyes | 1 | 1.72 | 1.19 |
| Nipple Sucking Engages in (Sexual) | 1 | 1.70 | 1.18 |
| Boobjob Engages in (Sexual) | 2 | 1.07 | 1.17 |
| Vaginal Masturbation Engages in (Sexual) | 1 | 1.68 | 1.16 |
| Boots Clothes | 1 | 1.68 | 1.16 |
| Rope Bondage Subject of (Sexual) | 1 | 1.67 | 1.16 |
| Crop Top Clothes | 1 | 1.66 | 1.15 |
| Collar Clothes | 1 | 1.66 | 1.15 |
| Violet Eyes | 2 | 1.04 | 1.15 |
| Thigh-high Stockings Clothes | 2 | 1.04 | 1.15 |
| Sex in Classroom Engages in (Sexual) | 1 | 1.61 | 1.11 |
| Spiky Bangs Hair | 2 | 1.00 | 1.10 |
| Bondage Sex Subject of (Sexual) | 1 | 1.58 | 1.09 |
| Sex in Water Engages in (Sexual) | 1 | 1.56 | 1.08 |
| Teacher Role | 1 | 1.55 | 1.08 |
| Energetic Personality | 1 | 1.52 | 1.05 |
| Orange Hair | 1 | 1.51 | 1.05 |
| Straight Hair | 2 | 0.94 | 1.04 |
| Slim Body | 5 | 0.58 | 1.03 |
| Sailor School Uniform Clothes | 1 | 1.48 | 1.02 |
| Doggy Style Subject of (Sexual) | 2 | 0.92 | 1.02 |
| Blouse Clothes | 1 | 1.46 | 1.01 |
| Smart Personality | 1 | 1.46 | 1.01 |
| Daughter Role | 1 | 1.45 | 1.01 |
| Shoulder-length Hair | 2 | 0.92 | 1.01 |
| Suit Clothes | 1 | 1.44 | 1.00 |
| Earrings Clothes | 1 | 1.42 | 0.98 |
| Hair Tie Clothes | 1 | 1.41 | 0.97 |
| Hairpin Clothes | 1 | 1.40 | 0.97 |
| Blunt Bangs Hair | 1 | 1.40 | 0.97 |
| Kid Body | 1 | 1.37 | 0.95 |
| Wavy Hair | 1 | 1.36 | 0.94 |
| Skirt Clothes | 1 | 1.34 | 0.93 |
| Pink Hair | 1 | 1.33 | 0.92 |
| Ahoge Hair | 1 | 1.32 | 0.92 |
| Red Hair | 1 | 1.32 | 0.92 |
| Belt Clothes | 1 | 1.27 | 0.88 |
| Childhood Friend Role | 1 | 1.26 | 0.87 |
| Dress Clothes | 1 | 1.25 | 0.87 |
| Teen Body | 3 | 0.62 | 0.86 |
| Friendly Personality | 1 | 1.22 | 0.84 |
| Ribbon Hair Tie Clothes | 1 | 1.19 | 0.83 |
| Trousers Clothes | 1 | 1.19 | 0.82 |
| Standing Sex Subject of (Sexual) | 1 | 1.18 | 0.81 |
| Butterfly Subject of (Sexual) | 1 | 1.17 | 0.81 |
| Twin Tails Hair | 1 | 1.13 | 0.78 |
| Ponytail Hair | 1 | 1.10 | 0.76 |
| Brown Hair | 2 | 0.68 | 0.75 |
| Glasses Clothes | 1 | 1.08 | 0.75 |
| Parted to Side Hair | 1 | 1.05 | 0.73 |
| Amber Eyes | 1 | 1.03 | 0.71 |
| Kind Personality | 1 | 1.03 | 0.71 |
| Green Eyes | 1 | 1.02 | 0.70 |
| Sidehair Hair | 1 | 0.98 | 0.68 |
| Cowgirl Subject of (Sexual) | 1 | 0.95 | 0.66 |
| Pale Body | 5 | 0.37 | 0.66 |
| High School Student Role | 1 | 0.85 | 0.59 |
| Virgin Sex Engages in (Sexual) | 1 | 0.85 | 0.59 |
| Waist Length+ Hair | 1 | 0.81 | 0.56 |
| Black Hair | 1 | 0.80 | 0.56 |
| Blue Eyes | 1 | 0.80 | 0.56 |
| Young-adult Body | 1 | 0.76 | 0.53 |
| School Uniform Clothes | 1 | 0.75 | 0.52 |
| Long Hair | 1 | 0.75 | 0.52 |
| Short Hair | 1 | 0.61 | 0.42 |