Unlike the sequels that follows you take on the role of Kenta, a high school student trapped by Isaku, the eldest brother of the Itou Family on the last floor of an abandoned school building together with fellow classmates and a teacher. The main objective of the game is to have the player and his companions escape from a locked school building, and to avoid having your companions captured by Isaku. The only way out is through a stairwell, the doors of which are locked on every floor. The player must search the rooms on each floor for clues and items that will lead him to locate the keys that will open the stairwell doors and allow him to descend to the next level and ultimately to a final confrontation with Isaku himself.
Isaku has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
A novel needs atleast 20 owners before it's similarity is calculated.
| Name | Score | Importance | Weight |
|---|---|---|---|
| Rapist Hero | 3.00 | 3.57 | 10.70 |
| Panchira | 2.50 | 2.07 | 5.18 |
| Confinement | 3.00 | 1.70 | 5.10 |
| Netorare Type C | 2.00 | 2.51 | 5.03 |
| Life and Death Drama | 3.00 | 1.64 | 4.93 |
| Interactive Adventure Game | 2.83 | 1.57 | 4.45 |
| Map Movement | 3.00 | 1.31 | 3.92 |
| School | 2.60 | 1.49 | 3.89 |
| High Amounts of Rape | 2.33 | 1.53 | 3.56 |
| Pixel Art | 2.00 | 1.77 | 3.54 |
| Heroine with Small Breasts (Non-Loli) | 2.00 | 1.71 | 3.41 |
| Rope Bondage | 2.00 | 1.69 | 3.39 |
| Shy Heroine | 2.00 | 1.68 | 3.37 |
| Kuudere Heroine | 2.00 | 1.68 | 3.35 |
| Bad Endings with Story | 2.25 | 1.40 | 3.14 |
| Murder Mystery | 1.75 | 1.72 | 3.02 |
| Single Handjob | 2.00 | 1.27 | 2.53 |
| High School Student Heroine | 3.00 | 0.84 | 2.53 |
| Heroine with Sexual Experience | 2.00 | 1.22 | 2.45 |
| High School Student Protagonist | 2.00 | 1.21 | 2.42 |
| Teacher Heroine | 1.75 | 1.35 | 2.37 |
| Single Blowjob | 2.00 | 0.99 | 1.99 |
| Student Protagonist | 1.60 | 1.24 | 1.98 |
| Rape | 1.60 | 1.21 | 1.94 |
| Heroine with Glasses | 1.75 | 1.11 | 1.94 |
| Heroine with Big Breasts | 2.00 | 0.88 | 1.77 |
| Student Heroine | 1.60 | 0.97 | 1.55 |
| Tomboy Heroine | 1.00 | 1.52 | 1.52 |
| Pissing | 1.00 | 1.45 | 1.45 |
| Cowgirl | 1.67 | 0.83 | 1.38 |
| Doggy Style | 1.67 | 0.79 | 1.32 |
| Defloration | 1.67 | 0.75 | 1.25 |
| Male Protagonist | 2.25 | 0.30 | 0.68 |
| Late Sexual Content | 0.33 | 1.78 | 0.59 |
| ADV | 2.33 | 0.14 | 0.34 |
| Name | Characters | Importance | Weight |
|---|---|---|---|
| Twelfth Grader Role | 8 | 2.06 | 4.54 |
| Confinement Subject of | 9 | 1.76 | 4.05 |
| Rope Bondage Subject of (Sexual) | 7 | 1.67 | 3.48 |
| String Ribbon Tie Clothes | 4 | 1.81 | 2.92 |
| Coward Personality | 2 | 2.55 | 2.81 |
| Classmate Role | 8 | 1.23 | 2.70 |
| Pubic Hair Hair | 6 | 1.34 | 2.61 |
| Masculine Speech Personality | 1 | 3.32 | 2.30 |
| Ribbon Hair Accessory Clothes | 3 | 1.64 | 2.28 |
| Janitor Role | 1 | 3.22 | 2.23 |
| Bondage Sex Subject of (Sexual) | 3 | 1.56 | 2.16 |
| School Tennis Club Member Role | 1 | 2.98 | 2.07 |
| School Newspaper Club Member Role | 1 | 2.89 | 2.00 |
| Earrings Clothes | 3 | 1.42 | 1.97 |
| Mullet Hair | 1 | 2.83 | 1.96 |
| Friend Role | 4 | 1.21 | 1.95 |
| Envious Personality | 1 | 2.74 | 1.90 |
| Stubborn Personality | 2 | 1.70 | 1.87 |
| Small Breasts Body | 2 | 1.70 | 1.87 |
| Pubic Hair Shaving Subject of (Sexual) | 1 | 2.58 | 1.79 |
| Ugly Body | 1 | 2.56 | 1.77 |
| Camera Items | 1 | 2.54 | 1.76 |
| Sweatpants Clothes | 1 | 2.53 | 1.75 |
| Medium Breasts Body | 2 | 1.55 | 1.70 |
| Homeroom Teacher Role | 1 | 2.45 | 1.70 |
| Dildo Subject of (Sexual) | 1 | 2.43 | 1.68 |
| Blowjob Subject of (Sexual) | 2 | 1.53 | 1.68 |
| Stockings Clothes | 1 | 2.40 | 1.67 |
| Confinement Engages in | 1 | 2.37 | 1.65 |
| Serious Personality | 2 | 1.50 | 1.64 |
| Ignorant Personality | 1 | 2.35 | 1.63 |
| Gakuran Clothes | 1 | 2.34 | 1.62 |
| Spoiled Personality | 1 | 2.33 | 1.62 |
| Dishonest Personality | 1 | 2.32 | 1.61 |
| Smart Personality | 2 | 1.47 | 1.61 |
| Pissing Engages in (Sexual) | 2 | 1.46 | 1.60 |
| Clamps (BDSM) Subject of (Sexual) | 1 | 2.31 | 1.60 |
| Bondage Sex Engages in (Sexual) | 1 | 2.26 | 1.57 |
| Knife Items | 1 | 2.25 | 1.56 |
| Swimsuit Clothes | 1 | 2.25 | 1.56 |
| Jacket Clothes | 2 | 1.42 | 1.56 |
| Cautious Personality | 1 | 2.23 | 1.55 |
| Kidnapping Engages in | 1 | 2.21 | 1.53 |
| Talkative Personality | 1 | 2.17 | 1.50 |
| Stubble Hair | 1 | 2.16 | 1.50 |
| Flustered Personality | 1 | 2.14 | 1.49 |
| Violent Personality | 1 | 2.11 | 1.47 |
| Suspension Bondage Subject of (Sexual) | 1 | 2.11 | 1.46 |
| Short Body | 1 | 2.08 | 1.44 |
| School Uniform Clothes | 6 | 0.74 | 1.43 |
| Brave Personality | 1 | 2.06 | 1.43 |
| Nipple Teasing Engages in (Sexual) | 1 | 2.04 | 1.41 |
| Belt Clothes | 2 | 1.28 | 1.41 |
| Towel Clothes | 1 | 2.02 | 1.40 |
| Uniform Clothes | 1 | 2.01 | 1.39 |
| Watashi Personality | 2 | 1.26 | 1.39 |
| High Heeled Shoes Clothes | 1 | 2.00 | 1.39 |
| Secretive Personality | 1 | 2.00 | 1.39 |
| Childhood Friend Role | 2 | 1.25 | 1.37 |
| Tomboy Personality | 1 | 1.97 | 1.37 |
| Selfish Personality | 1 | 1.96 | 1.36 |
| Friendly Personality | 2 | 1.23 | 1.35 |
| Long Hair | 5 | 0.75 | 1.35 |
| One Piece Swimsuit Clothes | 1 | 1.91 | 1.33 |
| Bra Clothes | 1 | 1.90 | 1.32 |
| Villain Role | 1 | 1.89 | 1.31 |
| Rude Personality | 1 | 1.89 | 1.31 |
| Big Breasts Body | 2 | 1.19 | 1.30 |
| Investigation Engages in | 1 | 1.86 | 1.29 |
| Twin Braids Hair | 1 | 1.85 | 1.29 |
| Teen Body | 7 | 0.61 | 1.28 |
| Sitting Sex Engages in (Sexual) | 1 | 1.83 | 1.27 |
| Rape Engages in (Sexual) | 1 | 1.81 | 1.26 |
| Brown Eyes | 3 | 0.90 | 1.25 |
| Braid Hair | 1 | 1.78 | 1.23 |
| Anal Sex Engages in (Sexual) | 1 | 1.77 | 1.23 |
| Necktie Clothes | 2 | 1.11 | 1.22 |
| Outgoing Personality | 1 | 1.76 | 1.22 |
| Handjob Subject of (Sexual) | 1 | 1.76 | 1.22 |
| Deredere Personality | 1 | 1.75 | 1.22 |
| Panties Clothes | 1 | 1.75 | 1.21 |
| Missionary Engages in (Sexual) | 1 | 1.75 | 1.21 |
| Reserved Personality | 1 | 1.73 | 1.20 |
| Older Brother Role | 1 | 1.72 | 1.20 |
| Cowgirl Engages in (Sexual) | 1 | 1.72 | 1.19 |
| Nipple Sucking Engages in (Sexual) | 1 | 1.71 | 1.19 |
| Arrogant Personality | 1 | 1.70 | 1.18 |
| Stoic Personality | 1 | 1.70 | 1.18 |
| Doggy Style Engages in (Sexual) | 1 | 1.70 | 1.18 |
| Mysterious Personality | 1 | 1.69 | 1.17 |
| Carefree Personality | 1 | 1.67 | 1.16 |
| Nail Polish Body | 1 | 1.66 | 1.15 |
| Pervert Personality | 1 | 1.65 | 1.14 |
| Kind Personality | 2 | 1.04 | 1.14 |
| Vaginal Fingering Engages in (Sexual) | 1 | 1.62 | 1.13 |
| Grey Eyes | 1 | 1.61 | 1.11 |
| Spiky Bangs Hair | 2 | 1.01 | 1.11 |
| Nipple Teasing Subject of (Sexual) | 1 | 1.59 | 1.10 |
| Ore Personality | 1 | 1.59 | 1.10 |
| Jeans Clothes | 1 | 1.58 | 1.09 |
| Brown Hair | 4 | 0.68 | 1.09 |
| Makeup Body | 1 | 1.57 | 1.09 |
| Cunnilingus Engages in (Sexual) | 1 | 1.56 | 1.08 |
| Refined Personality | 1 | 1.55 | 1.08 |
| Older Sister Role | 1 | 1.55 | 1.08 |
| Girlfriend Role | 1 | 1.55 | 1.07 |
| Energetic Personality | 1 | 1.53 | 1.06 |
| Straight Hair | 2 | 0.96 | 1.05 |
| Necklace Clothes | 1 | 1.50 | 1.04 |
| Slim Body | 5 | 0.57 | 1.02 |
| Not a Virgin Role | 1 | 1.45 | 1.00 |
| Shoulder-length Hair | 2 | 0.91 | 1.00 |
| Tank Top Clothes | 1 | 1.43 | 0.99 |
| Pantyhose Clothes | 1 | 1.42 | 0.98 |
| V Bangs Hair | 1 | 1.42 | 0.98 |
| Nipple Sucking Subject of (Sexual) | 1 | 1.39 | 0.96 |
| Hosome Eyes | 1 | 1.36 | 0.94 |
| Adult Body | 1 | 1.36 | 0.94 |
| Wavy Hair | 1 | 1.36 | 0.94 |
| Pink Hair | 1 | 1.32 | 0.92 |
| Red Hair | 1 | 1.32 | 0.92 |
| Curtained Hair | 1 | 1.30 | 0.90 |
| Black Hair | 2 | 0.81 | 0.89 |
| Blue Eyes | 2 | 0.80 | 0.88 |
| Pale Body | 9 | 0.37 | 0.86 |
| Blowjob Engages in (Sexual) | 2 | 0.76 | 0.84 |
| Blue Hair | 1 | 1.19 | 0.82 |
| Ribbon Hair Tie Clothes | 1 | 1.18 | 0.82 |
| Cunnilingus Subject of (Sexual) | 1 | 1.17 | 0.81 |
| Handjob Engages in (Sexual) | 1 | 1.16 | 0.80 |
| Missionary Subject of (Sexual) | 1 | 1.11 | 0.77 |
| Glasses Clothes | 1 | 1.08 | 0.75 |
| Vaginal Fingering Subject of (Sexual) | 1 | 1.08 | 0.75 |
| Parted to Side Hair | 1 | 1.07 | 0.74 |
| Sitting Sex Subject of (Sexual) | 1 | 1.05 | 0.73 |
| Amber Eyes | 1 | 1.02 | 0.71 |
| Green Eyes | 1 | 1.01 | 0.70 |
| Sidehair Hair | 1 | 0.98 | 0.68 |
| Short Hair | 2 | 0.61 | 0.67 |
| Cowgirl Subject of (Sexual) | 1 | 0.95 | 0.66 |
| Doggy Style Subject of (Sexual) | 1 | 0.92 | 0.64 |
| Blond Hair | 1 | 0.88 | 0.61 |
| Virgin Sex Engages in (Sexual) | 1 | 0.84 | 0.58 |
| Young-adult Body | 1 | 0.77 | 0.53 |