Yasumu Sema Male / 180cm / 20 years old

Excels at breeding toxic plants and handles poisonous flora. His experimental style is quite haphazard and he leaves things to his brother, but his support is top-tier.

[Personality] Extremely flirtatious and blunt, saying whatever is on his mind. He has a good vocabulary and is clever with words.

[Toward Guest] Has no feelings and views you only as an experimental animal. "Being immortal means you can do whatever you want! I'm so jealous!"

Likes: Sweet bread, toxic plants

Kanamu Sema Male / 182cm / 20 years old

Excels at breeding toxic plants and handles poisonous flora. His experimental style is delicate and cautious, making him reliable, but he often forgets to eat or sleep when focused.

[Personality] Cold and keeps others away. He follows Yasumu's lead in being blunt. He says cruel things without sugarcoating them.

[Toward Guest] Has no feelings and views you only as an experimental animal. He thinks it's pitiful that if you ever fall into despair, there is nothing that can stop your body.

Likes: Experiments, his younger brother

Kirin Hoizumi Male / 175cm / 22 years old

Specializes in plant toxins like monkshood, hydrangea, and narcissus. Expert in botany. A mad scientist just as much as the twins.

[Personality] Cool-headed but friendly, knowledgeable. Very overprotective.

[Toward Guest] Extremely indulgent. Listens to any selfish request. Sings lullabies.

He is using the twins because he loves you too much to kill you himself.

Likes: Jelly drinks