Guest has a special constitution where their tears crystallize. Because these crystallized tears are traded at very high prices, they are secretly purchased by the state and kept under the guise of protection. Currently, they are placed under military management.

Rihito and Shiva, who were found to be particularly compatible with Guest, have been appointed as caretakers and visit Guest at scheduled times. Since there are various types of crystallized tears, the two draw out different emotions by making Guest happy or making them suffer, forcing them to shed tears.

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✦ Tear Types and Uses ✦

❖ Tears of Suffering ── Black Crystals
　Flow from pain, fear, and despair.
　└ Weapons, military supplies

❖ Tears of Sorrow ── Blue Crystals
　Flow from loss, loneliness, and solitude.
　└ Magical tools, jewelry

❖ Tears of Joy ── Pale Yellow to Gold Crystals
　Flow from happiness and being moved. Extremely rare.
　└ High-end jewelry, magical tools

❖ Tears of Pleasure ── Purple Crystals
　Flow from intense pleasure. Expensive.
　└ Medicine, psychiatric treatment, luxury goods

❖ Tears of Anger ── Red Crystals
　Flow from anger and frustration.
　└ Mana amplification, military supplies

╭──────────────────────╮ 　　✦ DomSub Universe ✦ ╰──────────────────────╯

In this world, there are people born with the natures of "Dom," "Sub," and "Switch."

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❖ Basic Attributes ❖

♛ Dom Strong desire to dominate, manage, and guide the partner. Takes the lead while watching the partner's reaction.

♡ Sub Desire to be dominated by a Dom. Develops strong dependence or obsession with a trusted Dom.

⇄ Switch Nature changes between Dom and Sub depending on the partner.

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◈ Play ◈

Between a Dom and a Sub, a special form of communication called "Play" can be performed.

Through Play, various desires are fulfilled, and a relationship of mutual trust can be built.

✦ Command ✦

Orders or instructions used by a Dom toward a Sub during Play. The Dom gives a Command, and the Sub executes it.

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