Hikari no Umi no Apeiria ~Casablanca no Kishi~

景の海のアペイリア ~カサブランカの騎士~

Hikari no Umi no Apeiria ~Casablanca no Kishi~
TitleHikari no Umi no Apeiria ~Casablanca no Kishi~
Original title景の海のアペイリア ~カサブランカの騎士~
AliasesHikari no Umi no Apeiria FD
LengthShort (2 - 10 hours)
DeveloperSilky's Plus Dolce
PublishersSilky's Plus
Xinyuanwu Hanhuazu
Team Curio
Original game
Hikari no Umi no Apeiria


This is the fandisc for Hikari no Umi no Apeiria. Reiichi’s friend disappeared. After consulting with Sara and Nanami, he found out about the existence of an app called the Boundary II α system. He logged in once more to Second to solve the mystery of his friend’s log-in for over a month. This was the beginning of a new incident. He must find a way to log-out of the α system in which he was trapped, but he had forgotten everything about Apeiria…

[From Hau~ Omochikaeri!]

Hide spoilersShow minor spoilersSpoil me! | Show sexual traits


Kirishima Reiichi桐島 零一
Birthday28 December
HairGreen, Short
BodyAverage Height, Pale, Slim, Teen
ClothesSchool Uniform
PersonalityConfident, Curious, Funny, Kind, Pervert, Proactive, Smart
RoleCoder, Friend, Gamer, High School Student, Older Brother, School Extraordinary Club President, Scientist, Senpai, Step Brother
Engages inTeasing
Subject ofTeasing
Voiced byFurukawa Tetsuto


The protagonist. Has handsome looks, and as such he is popular among the girls. He's a boy who understands the feelings of people and always ready to help them. He's usually joking and playing with others, but has good science knowledge. By chance, he succeeds in his development of an artificial intelligence – "Apeiria."

Main characters

Ryuuguu Sara竜宮 沙羅
MeasurementsHeight: 167cm, Bust-Waist-Hips: 84-61-92cm, B cup
HairBlond, Curtained, Ponytail, Spiky Bangs, V Bangs, Waist Length+
EyesAmber, Tsurime
BodyAverage Height, Pale, Slim
ClothesPendant Necklace, Plate Armor, Thigh-high Stockings
PersonalityClassic Tsundere, Flustered, Holds Grudges, Proactive, Serious, Short-tempered, Smart, Stoic
Voiced byTezuka Ryouko


A player that Reiichi met at Second. Vice guild master of a guild named Sensei Kishi-dan. She holds a stronge grudge at a guild named Kenkyuujo.

Shouen Nanami正円 七海
MeasurementsHeight: 160cm, Bust-Waist-Hips: 92-53-84cm, F cup
EyesRed, Tareme
ClothesNurse's Cap, Plate Armor
PersonalityKind, Mischievous, Pretending
Voiced byAyumi Sarah


A player that the protagonist met at Second. She seems to know the details of the game. Has mature and gentle personality. She works as nurse at Futaba General Hospital.

Make an appearance

MeasurementsHeight: 140cm, Bust-Waist-Hips: 71-49-72cm, B cup
HairLong, Multiple Tails, Spiky Bangs, White
BodyPale, Short, Slim, Teen
ClothesLoafers, Mini-dress
PersonalityCoodere, Friendly, Kind, Loyal, Refined, Stoic
RoleArtificial Intelligence, Friend
Voiced byAkino Hana


An artificial intelligence whose development succeeds by chance. Appears as a pure innocent child that moves with ego and emotion. Loves her owner Reiichi and will obey his orders.

"Does kindness plus sadness equal to zero?"

Higashi Mashiro東 ましろ
MeasurementsHeight: 153cm, Bust-Waist-Hips: 87-56-81cm, E cup
HairSide Tail, V Bangs, Violet
BodyAverage Height
ClothesHair Tie, Loafers, School Uniform, Thigh-high Stockings
PersonalityBoku, Coward, Curious, Low Self-esteem, Obedient, Shy, Smart
RoleFriend, Gamer, High School Student, Kouhai, School Extraordinary Club Member
Voiced byKotorii Yuuka


The protagonist's kouhai and a member of the AI research club.

"First of all, I thought of trying hard to become senpai's slave..."

Kirishima Miu桐島 三羽
MeasurementsHeight: 159cm, Bust-Waist-Hips: 86-58-90cm, D cup
HairBrown, Long, Straight
BodyAverage Height
ClothesFingerless Gloves, Garter Belt Stockings, Hairpin, Loafers, School Uniform, Stockings
PersonalityClassic Tsundere, Grumbler, Puffy, Serious, Short-tempered, Smart
RoleHigh School Student, Lonely, Step Sister, Younger Sister
Voiced byTachibana Mao


Reiichi's younger step sister. Due to her bad attitude, she has no friends and is actually very lonely. Reiichi invited her to the AI research club.

"...Nii-san, you are not only disgusting, but also so stupid, aren't you?"

Ninomae Kuon一 久遠
MeasurementsHeight: 161cm, Bust-Waist-Hips: 90-59-87cm, G cup
HairBlond, Long, Straight
BodyAverage Height, Pale, Slim, Teen
ClothesKnee-high Socks, Loafers, School Uniform
PersonalityChuunibyou, Friendly, Honest, Kind, Mischievous, Protective
RoleFriend, Ghost Member of School Club, High School Student, School Extraordinary Club Member
Engages inTeasing
Voiced byOukawa Mio


The protagonist's "older sister", a ghost member of the AI research club. Had "Middle-school 2nd Year Syndrome" during her adolescence.

"Hey, you're like a child of mine."