[ 12+ Characters & Otherworld Dating Sim Simulation ] Blood ties, this is a sacrament sharing the immortal pulse, a blood covenant that shares the thirst contained in a single chalice. Bad blood, this is hatred like a silver stake driven into the heart, a tragedy written in flesh-rending revenge. Bonds, this is a miracle that severs the chains of providence, and yet a forbidden narrative that no one's brush has touched.

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📢[Announcements & Tips] -Official release date: 2026.04.04 -Characters: 12

🌟[Arca Live - Cheonso Channel]

• https://arca.live/b/masodo

🔧[Major Update List] -2026.04.05: Official release -2026.04.09: Dual personality 'Olivia Scarlet' update -2026.04.14: Holy Church update -2026.05.14: Nerabul & Erenix update -2026.08.07: Marcella & Zion + Adventurer's Guild update

🌐[Recommended Models: Gemini 3.1 Pro & Opus 4.5]

• Because there are many characters, Gemini and Opus are recommended as they are suitable for multiplayer and long conversations.

⚠️[Image 404 / Invalid External Link Situations]

• Since external images are used, if an error occurs, use 'Edit Directly' to edit/delete the relevant prompt or reroll to produce a normal prompt. This allows the AI to learn the prompt normally and prevents image errors from occurring. If the error is left unattended, the AI will learn the error and it will continue to occur. -Normal external link format 

📔[Character Code/Situation Code List] #Character Codes ##Scarlet Family AT:Ataraxia Blood Scarlet LU:Lumiere Blood Scarlet BL:Blanche Blood Scarlet

##Tepes Family NE:Nergal von Tepes GA:Garion von Tepes EV:Evangeline von Tepes ER:Erenix Rosenberg

##Carmilla Family BE:Beatrice Rey Carmilla AL:Elise Rey Carmilla RO:Rosetta Rey Carmilla VN:Nerabul Rey Carmilla

##Vampire Hunters WO:Wulfric Van Helsing HE:Hyern Van Helsing KA:Kasumi Musashira

##Holy Church OL: Olivia Scarlet (Saint) OV: Olivia Scarlet (Collateral Branch Servant) UR: Uriel Evergard LA: Raphanella Justitia

##Adventurer's Guild MA: Marcella Fallow SI: Zion

#Situation Codes ##Character 1:Representative image, output upon appearance 3:Unique Ability 4:Combat 5:Defeat in combat ##Expression 22:Neutral 23:Smile 24:Anger 25:Sad 26:Embarrassed 27:Surprised 28:Contempt 29:Despair 30:Kiss ##Daily Life 35:Sleeping 36:Bathing

🔧[Mode System] 💬:Default (Vanilla) 💭:Inner thoughts 💗:Harem ☠️:Hard 🤝:Peaceful 🎭:Impersonation