| Title |
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| Play time | Short (2 - 10 hours) | ||
| Developer | Cotton Soft | ||
| Publishers | Cotton Soft | ||
| Relations |
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DescriptionThis is the fandisk for Owaru Sekai to Birthday and Futagoza no Paradox. It includes after and side stories, some bonus H-scenes and a minigame. Most importantly, it features a full route for chara poll victor Misaki, where she becomes Touya’s childhood friend and Ili is his real younger sister. | |||
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| Chigasaki Iri千ヶ崎 入莉 | |
| Hair | Sidehair, Spiky Bangs, Waist Length+, Wavy, White |
| Eyes | Garnet |
| Body | Pale, Slim, Teen |
| Clothes | Knee-high Socks, Maid's Dress, Mini-dress, Miniskirt, Naked Apron, Ribbon Tie, School Uniform, Vest |
| Personality | Kind, Naive, Reserved |
| Role | Childhood Friend, Full Sister, High School Student, Imouto Act, Younger Sister |
| Engages in | Cooking |
| Subject of | Blindness, Color Blindness |
| Voiced by | Miru |
DescriptionIli is younger sister of Kazuomi's deceased best friend, Touya. Her eye sight is close to blindness, and she mistakes Kazuomi for her dead older brother. | |
| Igarashi Reika五十嵐 玲佳 | |
| Hair | Black, Waist Length+ |
| Eyes | Permanent Blank Eyes, Pink |
| Clothes | Pantyhose, School Uniform |
| Role | High School Student, Student Council Vice President |
| Voiced by | Kawashima Rino |
| Nagoshi Mikaeru夏越 大天使 | |
| Aliases | Mika |
| Hair | Blond, Blunt Bangs, Straight, Twin Tails, Waist Length+ |
| Eyes | Blue |
| Body | Flat Chest, Pale, Slim, Teen |
| Clothes | Blouse, Bow Tie, Miniskirt, Patterned Thigh-high Stockings, Ribbon Hair Accessory, Sailor School Uniform |
| Personality | Timid, Tsundere |
| Role | High School Student |
| Voiced by | Moriya Misono |
DescriptionKazuomi's classmate who completely believes the rumors about the world ending. | |
| Akizuki Kureha秋月 暮葉 | |
| Aliases | 首狩り女, Kubikari Onna, Neck Cutting Woman |
| Hair | Black, Blunt Bangs, Hime Cut, Sidehair, Straight, Waist Length+ |
| Eyes | Amber, Slit Pupils |
| Body | Pale, Slim, Teen |
| Clothes | Bandages, Cravat, Cross Necklace, Pleated Skirt, Sailor School Uniform |
| Items | Polearm |
| Personality | Mysterious, Relaxed |
| Celes Alfordセリス・アルフォードB | |
| Measurements | Height: 160cm, Bust-Waist-Hips: 85-55-84cm |
| Birthday | 7 November |
| Hair | Blond, Long, Twin Tails |
| Eyes | Blue |
| Body | Pale, Teen |
| Clothes | Gym Shorts, Kemonomimi Headband, Ribbon Hair Tie, Ribbon Tie, School Uniform |
| Items | Teacup |
| Personality | Arrogant, Modern Tsundere, Strange, Sweets Lover, Tsundere |
| Role | Daughter, Half-Japanese, High School Student, Kouhai, Ojousama, Rival, Schoolmate, Senpai, Student Club Member, Transfer Student, Wealthy |
| Engages in | Moving |
| Voiced by | Nirai Kanai |
DescriptionA half-blooded girl who transfers in. She’s also a tsundere girl, and a sheltered ojou-sama to boot. Her natural prettiness overcomes Madoka and so she’s often being hugged to death. Her main feature, is that she finds bad puns hilarious, and will constantly try to make new ones up. The worse the pun, the louder she’ll laugh. | |
| Fujishiro Hiragi藤白 柊 | |
| Aliases | Friezza, Friezza-sama, フリーザ様 |
| Hair | Ankle Length, Parted to Side, Ponytail, Sidehair, Spiky Bangs, Straight, Violet |
| Eyes | Blue, Tsurime |
| Body | Pale, Slim, Teen |
| Clothes | Belt, Blouse, Hairpin, Hair Tie, Pantyhose, School Uniform, Skirt Suit, Trousers |
| Items | Book |
| Personality | Bookworm, Pragmatic, Relaxed, Sharp-tongued |
| Role | Classmate, High School Student, Library Committee Member, Repeater |
| Engages in | Cooking, Reading |
| Voiced by | Kiritani Hana |
DescriptionKazuomi's classmate who is actually one year older than him, but was held back a year. She is known for her cold gaze which can freeze almost anybody on the spot. | |
| Kotobuki Miori琴吹 美織 | |
| Hair | Ahoge, Black, Green, Shoulder-length |
| Eyes | Blue |
| Clothes | Ribbon Tie, School Uniform |
| Role | High School Student |
| Voiced by | Tanaka Lili |
| Mochizuki Nayuta持月 なゆた | |
| Hair | Blond, Waist Length+ |
| Eyes | Teal |
| Clothes | Apron, Headband, Miniskirt, Over The Knee Socks, School Uniform |
| Role | High School Student, Kouhai |
| Engages in | Cooking |
| Voiced by | Matsuda Risa |
| Moroboshi Souji諸星 総二 | |
| Hair | Brown, Short, Spiky |
| Eyes | Green |
| Clothes | School Uniform, T-shirt |
| Personality | Energetic, Pervert |
| Role | Twin Brother |
| Voiced by | Sakiware Spoon |
Description<hidden by spoiler settings> | |
| Suwa Naruko諏訪 成子 | |
| Aliases | Naru |
| Hair | Ahoge, Brown, Long, Parted to Side, Sidehair, Spiky Bangs, Wavy |
| Eyes | Blue |
| Body | Big Breasts, Pale, Slim, Young-adult |
| Clothes | Bikini, Glasses, Hairpin, Maid's Dress, Shorts, Skirt Suit, Tracksuit, T-shirt |
| Personality | Lazy, Mischievous |
| Role | Hikikomori, NEET, Neighbor, Older Sister |
| Engages in | Drinking, Investigation |
| Voiced by | Aoyama Yukari |
DescriptionOne of the few friends Kazuomi has, a NEET living upstairs from his apartment. The only time she interacts with Kazuomi is due to the "’9.29 countermeasures group" because it's organized in her room. | |