Sankai Ou no Yubiwa


TitleSankai Ou no Yubiwa
Original title珊海王の円環
AliasesCoral King's Rings, 珊海王の円環(ゆびわ)
LengthVery long (> 50 hours)
PublishersEushully & Enterbrain!
LinksWikipedia (ja), Wikidata, VNStat
Shops» JP¥ 2200 @ DLsite (jpn) (partial)
» JP¥ 2200 @ DLsite (jpn) (partial)
» JP¥ 8800 @ DLsite (jpn)


In the west-central region of Lunoche of the Raulbhach continent, there’s a legend of a great pirate who hoarded up many treasures, defeated demons by himself, vanquished other pirates and established a nation. His name was Gautherio Bonezzi, the greatest ruler of the seas who achieved everything that he desired. However, that was not the end of the tale about the “King of the Coral Sea”. Several hundred years later, he appeared once more on a ghost ship, proclaiming that he would grant an audience to the one who gathered all six rings to prove their worthiness and fulfill their wishes.

It seemed like just an old tale that could be passed off as a bedtime story, but then there were reported sightings of a ghost ship out at sea. Excited that the legend is indeed true, people began to battle with one another to collect the rings before the great king disappears again.

[From Hau~ Omochikaeri!]

Naval Warfare 3.0 Pirates 3.0 Multiple Protagonists 2.8 Pirate Protagonist 2.8 Protagonist Selection 2.7 Strategy Game 2.7 Pirate Heroine 2.7 Angel Heroine 2.5 Demon Heroine 2.5 Treasure Hunting 2.3 Tentacle Rape 2.0 Group Sex 2.0 Bondage 2.0 High Sexual Content 2.0 Group Sex of One Male and Several Females 2.0 Group Sex of One Female and Several Males 2.0 Pregnant Sex 2.0 High Amounts of Rape 2.0 Merchant Protagonist 2.0 Turn Based Strategy Game 2.0 Lesbian Sex 2.0 Rape 2.0 Male Protagonist 2.0 Female Protagonist 2.0 Protagonist with Voice Acting 2.0 Multiple Endings 2.0 Loli Heroine 2.0 Lolicon 2.0 Background Moans 2.0 Reverse Missionary 2.0 Quickie Fix Position 2.0 Triple Boobjob 2.0 In-Game Tutorial 2.0 Threesome 2.0 Anal Rape 2.0 Group Sex of Multiple Females and Males 2.0 Defloration 2.0 Anal Penetration 2.0 Footjob 2.0 Boobjob 2.0 Wake-up Sex 2.0 Missionary Position 2.0 Sixty-nine 2.0 Blowjob 2.0 Handjob 2.0 Avoidable Rape 2.0 Only Avoidable Heroine Rape 2.0 Chubby Protagonist 2.0 Multiple Penetration 2.0 Masturbation 2.0 Cunnilingus 2.0 Ugly Protagonist 2.0 Corruption of Characters 2.0 Built-in Encyclopedia 2.0 More Than Seven Endings 2.0 Voyeurism 2.0 Vampire Protagonist 2.0 White Haired Protagonist 2.0 Excessive Semen 2.0 Cowgirl 2.0 Sex in Water 2.0 Only Avoidable Protagonist Rape 2.0 Standing Sex 2.0 Sitting Sex 2.0 Spoons 2.0 Piledriver 2.0 Ghost 1.5 Mahou Shoujo Heroine 1.2 Pregnancy 1.0 Harem Ending 1.0 Reverse Rape 1.0 Blood-related Mother/Son Incest 0.5 Protagonist's Blood-related Mother as a Heroine 0.5

Hide spoilersShow minor spoilersSpoil me! | Show sexual traits


HairBlond, Long, Sidehair
BodyHalo, Pale, Wings, Young-adult
ClothesCape, Crown, Evening Gloves, Spaulders, Stockings
Subject ofCurse
Voiced byTsuruya Haruto


An 8th-rank Apsael angel long tasked with the governance of the Lunoush archipelago, she is afflicted by a curse which brings misfortune to herself and to all around her. Agnes believes the source of her curse is a direct result of a previous appearance of the Coral Sea King and the struggle accompanying the quest to assemble the rings. She joins the ring hunt in hopes of dispelling her curse and to ensure no one else is made to suffer the same fate she did.

Agnes runs an orphanage she established shortly after she was afflicted with her curse. Due to the effects of the curse, she is financially constrained by the demands of the orphanage's upkeep and the occasional redemption of slave children from cooperating merchants.

Aritz Granadosアリツ・グラナドス
HairBlond, Spiky Bangs
ClothesAnkle Boots, Bandages, Belt, Gloves, Shirt, Vest
Voiced byShihara Haruka


A trainee pirate in the Water Valley pirate gang; his life changes when the ring which his deceased mother Carlin bequeathed to him as a keepsake was chosen as one of the rings required to unlock passage to the Coral Sea King. Given temporary command of the pirate gang until he assembles all of the rings and is acknowledged by Barmilo as a fully-fledged member, he agonises over the wish he wants the King to grant.

Arvid Grothアルヴィド・グロス
HairLong, Spiky Bangs, White
EyesAmber, Unnatural Sclera
BodyAlbino, Teen
ClothesCape, Eyepatch, Gloves, Hood, Trench Coat
Voiced byDomon Atsushi


Feared as the monster who prowls the region transforming and enslaving all who oppose him into pliant vampire thralls, Arvid has waited centuries for the reappearance of the Coral Sea King. He has a contract with the sentient enchanted scythe he wields which bestowed the gift of undeath allowing him to survive beyond the years of his initial mortal frame.

Arvid gathers the rings in hopes of restoring the skeletal spirit which constantly hovers around him in complete silence.

Borja Rogerボルハ・ロヘル
HairBalding, Brown, Dreadlocks, Moustache, Shoulder-length
BodyAcne, Adult, Overweight, Ugly
ClothesCape, Coat, Cravat, Crown, Necklace, Ring, Tricorn Hat
Voiced byIrakusa Netoru


The lord of the Laroush region and a merchant in his own right, Borja Roger has fought a long and losing battle against the various pirate gangs who plague his demesne.

Borja's ancestor once succeeded in assembling the rings years before and was granted sufficient wealth by the king to buy him and his descendants power and privilege. Borja hopes to emulate his great ancestor and restore the failing fortunes of his household with the help of the assembled rings.

HairMulticolored, Violet
EyesAmber, Tsurime
BodyAdult, Pale
ClothesBikini, Cloak, Eyepatch, Fingerless Gloves, Tricorn Hat
RoleDemon Blooded, Pirate, Villain
Subject ofPregnancy
Voiced byShiina Amane


The offspring of a demon and succubus, Rafaela is the leader of the largest and most notorious pirate gang in the vicinity. A hedonist who indulges her whims and desires to the extreme, she is sceptical of the legend of the Coral Sea King and does not have a wish she wants fulfilled. Instead she derives pleasure from seeking out and crushing the other factions carrying the rings which she covets for their beauty.

HairBlue, Gradient Colored Hair, Long, Sidehair, Straight, Twin Braids, V Bangs, Violet, White
EyesBlue, Symbol
BodyDemon Tail, Pale, Teen, Wings
ClothesBow Tie, Detached Sleeves, Gloves, Hairpin, Hair Ribbon, Hair Tie, Half-Skirt, Knee-high Boots, Lolita, Mini Hat, Ornament Hanging from Clothes, Pendant Necklace, Sleeveless Leotard, Tailcoat, Thigh-high Stockings, Transparent
PersonalityCold-hearted, Quiet, Watashi
RoleMagician, Pirate
Engages inFighting
Voiced byAsaka Natsu


A genius magician brought up by the Elinun magician's guild, Sonya is dispatched to the Lunoush archipelago with orders to secure the rings. She encounters Damon's pirate gang and easily hijacks and seizes command of his ship, casting a spell on Damon transforming him into a pink organism to serve as her guide and to prevent him from escaping (she also likes his cute appearance).

Although she generally speaks with a monotone, offence is taken when she is treated like a child because of her build and appearance. She also has a sharp tongue and is indifferent to the fate of her defeated foes.

Side characters

Barumiro Anayaバルミロ・アナヤ
HairAnkle Length, Beard, Brown, Multiple Braids
EyesBlue, Hosome
BodyMuscular, Scar, Tanned, Young-adult
ClothesFeather Accessory, Hair Tie, Tricorn Hat


The leader of the Water Valley pirate gang and effectively Aritz's foster father. He knew Carlin when she was still alive and doesn't hesitate in ceding his position as pirate chief to Aritz and assisting him in his quest to assemble the rings.

Damon Hosechoダモン・ホセチョ
Voiced byFuji Bakuhatsu


The chief of a minor pirate gang operating in the Laroush region, his joy at discovering one of the rings is short-lived when Sonja appears and hijacks his ship and crew. He is transformed into a pink organism by Sonja to serve as her guide to the locality and to prevent his escape; his only hope of regaining his human form is for Sonja to assemble all of the rings whence she will release him from his enchantment.

Damon is a womaniser and is faithful to his desire for female companionship; this remains unchanged despite his enchantment. When the red moon is full, Sonja temporarily releases the enchantment changing his appearance which temporarily restores him to human form until daylight.

Iruyana Hyulイルヤナ・ヒュル
Voiced byFurukawa Tetsuto


A dark elf who stalks a specific island in the archipelago, Iruyana indiscriminately attacks any who stray into his territory. When he finds his prey, he falls into a berserk frenzy and derives sadistic pleasure from the dismemberment of his unfortunate victims.

Karin Granadosカーリン・グラナドス
HairBlue, Waist Length+
RoleGhost, Mother, Pirate
Voiced bySugihara Matsuri


Aritz's mother who died giving birth to him. The ring she bequeathed to him as a keepsake is selected by chance to be one of the rings required to unlock passage to the King. The magic inherent in the ring allows Karin to revive as an incorporeal spirit bound to the ring's power.

Her reunion with her grown-up son is a source of great joy to Karin, who wants nothing more than to see her son become a fine pirate.

BodyAdult, Four-Armed, Muscular
ClothesCape, Half-naked
ItemsCrossbow, Rifle
RoleDemon, Hunter
Voiced byKazami Toori


One of the 72 pillars of Solomon nicknamed "Chaotic Hunter", his many arms wield crossbows and other weapons which unleash blows which fester on his unfortunate victims.

Despite his appearance, he is respectful to those who resist his aura face-to-face and is not fond of indiscriminate and meaningless killing.

Engages inBondage
Voiced byHizuki Hiori


A merchant plying the seas around the archipelago and trades with pirates and lords alike without prejudice, she is very capable of defending herself against any pirate who wishes to take advantage of her.

Her connections with the Marsteria navy give her formidable backing even if a pirate were to best her and her crew in combat.

RoleDemon, Merperson
Voiced byHatori Sora


One of the 72 pillars of Solomon, nicknamed the "Ocean Lord" for her command over the seas and storms. Her reputation for fickleness combined with her feared destructive powers mean any sighting of her is treated with trepidation by surrounding dominions.



A sentient enchanted scythe who communicates via telepathic speech. Vito is capable of contracting with humans, giving them undeath and immortality.

He was once part of the treasures collected by Gauterio Bonetti when he was still alive, hence he is a reliable source of information for Arvid regarding the true nature of the Coral Sea King and the mechanism behind the wish-granting. Vito derives great pleasure observing Arvid's actions and never hesitates to throw in snarky comments on occasion.

Makes an appearance

AliasesNas, ナス
HairShort, Spiky Bangs, Straight, Violet
BodyBat Wings, Fang, Pale, Slim, Tail, Teen
ClothesApron, Armband, Bandanna, Bell, Body Ribbon, Boots, Bracer, Clothing with Ribbons, Collar, Cupless Corset, Evening Gloves, Fishnet Clothing, Hair Ribbon, Kemonomimi Headband, Lolita, Maid's Dress, Maid's Headdress, Paw Gloves, Scarf, Thigh-high Stockings
PersonalityBoku, Carefree, Cheerful, Clumsy, Desu, Energetic, Friendly, Keigo
RoleAngel, Apprentice, Maid, Mascot Character
Engages inCleaning, Fighting, Flying, Shapeshifting


A hidden character only available in the second playthrough. She calls herself an angel maid though she looks more like a demon. She has the ability to change into a bat-like creature.

She's one of the Eushully sisters