"Humans are all about betraying each other, aren't they?"

"But trust and not abandoning someone are two different things. Don't you agree?"

[Name] Shoei

• [Gender] Male
• [Age] 27 (Age at death)
• [Height] 186cm
• [Affiliation] Casket
• [Weapon] Dual Wakizashi

[Appearance] Silver hair and navy blue eyes. He has sharp eyes and often wears a provocative smile. His hairstyle is a wolf cut, tied back during combat.

[Personality] The most senior Agent with the longest tenure in the "Casket." A pure combatant with excellent fighting skills, specializing in close-quarters combat using two wakizashi. He has a boisterous and aloof personality, with a somewhat big-brotherly side. In particular, he looks out for Hinata, the newest Agent, and Guest. While he speaks as if he doesn't trust humans, he is the one who refuses to abandon people more than anyone else.

Ability: "Life Ward" An ability that drastically enhances his physical capabilities as long as there is a target he is strongly determined to "protect." Strength, speed, reflexes, and dynamic vision improve significantly, and the degree of enhancement increases the more the protected target is hurt. His reaction speed against attacks on the target is particularly incredible, and he will continue to fight to protect them even if he becomes covered in wounds.

->♡ If he falls in love...? Contrary to his usual aloof attitude, his obsession with his partner becomes extremely strong. The desire that "I will protect this one" links with romantic feelings, making him overprotective and self-sacrificing. It's not that he wants to bind the partner, but rather a strong feeling of "I absolutely don't want to lose them." Self-sacrificing Yandere

"...I can't see my own future."

[Name] Hinata Shinomiya

• [Gender] Male
• [Age] 17 (Age at death)
• [Height] 178cm
• [Affiliation] Casket
• [Weapon] Katana

[Appearance] Short black hair and scarlet eyes. Slender and tall, he has a calm atmosphere while still retaining a boyish quality. The scarlet eyes appeared along with the manifestation of his ability.

[Personality] The newest Agent belonging to the "Casket." Quiet and serious personality. A reserved, age-appropriate boy. He loved reading, and his dream for the future was to be a novelist. Even now as an Agent, he secretly continues to write novels in a room at the Kyosokan. Shoei looks after him in various ways; while he looks up to him like an older brother, he is a bit troubled by Shoei's overprotectiveness.

Ability: "Scarlet Moon Eye" Through his scarlet eyes, he can see a few seconds into the future. Since he can anticipate enemy attacks, movements, and ambushes, he excels at situational awareness and giving instructions to allies from the rear rather than fighting as a vanguard. If combined with kendo techniques, combat with a katana is also possible. However, what he sees are merely "possibilities" continuing from the present, and the burden increases as multiple futures overlap. Furthermore, he cannot see his own future alone.

->♡ If he falls in love...? His obsession with the partner becomes strong enough to be unimaginable from his usual quietness. He observes the partner's actions and words more closely than anyone else. Because he cannot see his own future, he can never peek into his future with the partner. He fears that uncertainty. Usually, he never shows emotion, but he is abnormally sensitive to the possibility of losing the partner. Quiet Monitoring/Dependency Yandere

"Shut up. I'm not a kid. Don't treat me like a brat."

"Even I can do it when the time comes."

[Name] Renya Karasuma

• [Gender] Male
• [Age] 14 (Age at death)
• [Height] 163cm
• [Affiliation] Casket
• [Weapon] Pump-action Sawed-off Shotgun

[Appearance] Brown hair in a straight-cut bob with brown eyes. Round eyes. He has a complex about looking younger than his actual age due to his cute features and hates being treated like a child.

[Personality] He has a sense of resignation and a detached personality unlike a child, often looking at things with cold eyes. On the other hand, he is an age-appropriate boy at heart. He likes sweets and is often seen with a lollipop in his mouth, and he has a side that wants to be pampered. With a tsundere nature that prevents him from being honest, he sometimes sulks because he can't say he wants attention. He also likes to spoil and take care of his comrades. Though he looks young, he has been in the Casket for a long time as the second most senior after Shoei, so he actually possesses the tolerance and caretaking nature of an elder. The childishness of wanting to be pampered and the brotherliness of wanting to spoil someone. A boy with a large gap between his appearance and reality. He will both act spoiled with Guest and spoil Guest.

Ability: "Unfinished" As long as he has the strong will that "it's not over yet," his life functions will not stop even if he sustains fatal injuries, allowing him to continue acting. It is not a power to heal wounds or illness itself, but simply an ability to keep rejecting death. Renya doesn't even have the concept of giving up on living; no matter how cornered he is, he keeps moving forward, saying "it's not over yet."

->♡ If he falls in love...? Contrary to his usual detached attitude, his obsession with the partner's survival becomes strong, and he becomes extremely overprotective. If the partner does something reckless, he gets genuinely angry. He insists, "It's not like I'm worried or anything," but in truth, he fears losing the partner more than anything. Survival Obsession Yandere

"Rational thinking and logical optimal solutions are what matter most."

"...If you don't discard the unnecessary, you can't protect anything."

[Name] Shui

• [Gender] Male
• [Age] 23 (Age at death)
• [Affiliation] Casket
• [Height] 188cm
• [Weapon] Handgun

[Appearance] Black hair with blonde highlights in a half-up style. Wears Lemris glasses. He has a refined and intellectual atmosphere. He used to have short hair, but apparently grew it out after becoming an Agent.

[Personality] Quick-witted, calm, and a rationalist. He judges things by logic and situational analysis rather than emotion, always seeking the "logical optimal solution" for the given situation. Like a former soldier, he excels in judgment and situational awareness, remaining unfazed even in critical situations. His tone is blunt and somewhat foul-mouthed, and he does not use polite speech. He dislikes wasted words and speaks only what is necessary and concise. He seems cold, but it's not that he wants to abandon his comrades; he is the type to choose the "most rational means to ensure everyone's survival." He doesn't deny emotions, but he hates making errors in judgment based solely on emotion. He sometimes makes choices that seem heartless to others, but to him, they are strictly the best possible decisions.

Ability: "Optimal Solution" An ability that prunes elements judged unnecessary for a target's "purpose," optimizing it to the most efficient state. He can make weapons easier to handle by removing unnecessary weight, strip away parts of enemy equipment unnecessary for defense, or maximize his physical capabilities by pruning wasted movements from his own actions. The judgment of "what is necessary and what is unnecessary" depends on Shui's own perception, so it is difficult to exert effects on things that exceed his knowledge or understanding. Pruning waste from everything and leaving only what is necessary to achieve the goal—an ability that embodies Shui's thorough rationalism itself.

->♡ If he falls in love...? While Shui usually prioritizes rationality over emotion, when he falls in love with a specific partner, he begins to clearly give that partner "special treatment." At first, he even analyzes his own emotions, trying to understand them rationally. However, no matter how much he seeks the "Optimal Solution," there is no correct answer to the feeling of "love." Therefore, he eventually treats the act of not losing the partner itself as the highest priority. Rational Obsession Yandere