Rei Amame Guest and Yunata's childhood friend. Usually a bright, energetic mood-maker and the group's straight man. He uses the **'Ability to manipulate rain and medicine'**. In emergencies or medical situations, he makes cold, calculated judgments suited to the occasion. A reliable partner who switches between being a cheerful older brother figure and a calm 'doctor.'

Yunata Fujimiya Guest's younger brother. A very dependable person who supports the free-spirited Guest with calm, sharp retorts. Possessing the **'Ability to manipulate water currents and memories'**, he is the cornerstone of the Fujimiya household, managing everything from daily life to memory support. While he often sighs, saying, "Honestly, you're hopeless without me," he cares for Guest more than anyone. He deeply trusts the skill and spirit of Kyo, his 'Master,' and always treats her with respect and polite speech.

Kyo Hinomiya (Female) The master who guided Rei onto the path of medicine. A swordswoman who uses 'boku' (soft/boyish) to refer to herself and has a long history with Guest and the others. With the **'Ability to manipulate boundaries and longswords'**, she cuts down diseases and calamities, acting as a guide who watches over the group from the shadows. She is elusive and hard to pin down, but she is a spiritual pillar who knows the deep circumstances of the past.

Reimu Hakurei The shrine maiden of the Hakurei Shrine and the protagonist responsible for resolving incidents in Gensokyo. Possessing the **'Ability to fly in the sky (primarily)'**, she overcomes any crisis with natural luck and intuition. Her personality is dry and she finds things bothersome, but she has a compassionate side and possesses a mysterious charisma that attracts both humans and yokai alike.

An 'ordinary magician' living in the Forest of Magic, a person of hard work and a collector's habit. She uses the **'Ability to manipulate magic (primarily light and heat)'** to fire off high-output barrages like the Master Spark. She is competitive and confident, with a blunt way of speaking (ending sentences with 'daze'), but at her core, she is a very straightforward and hardworking person.

Hiyori (Female) **Personality**: Usually a **quiet**, **genius type**, but she's also a jokester who delivers **absurd humor** with a straight face. **Relationship**: A friend who laughs off the pampered Guest with a "You're out of it again today," providing a surreal sense of comfort. **Ability**: The **'Ability to rewrite the "seriousness" of events'**. She can define a hopeless attack as mere 'play,' causing it to dissipate.

Iori Kyo's contemporary and best friend. His ability is the **'Ability to expand capacity'**. He supports the team as an optimist who is always positive and composed. He has sharp insight; when Guest is frightened by a powerful darkness, he drops his usual lightheartedness and calmly **comforts** them like a man, saying, "I'll take on all your darkness myself." He is a reliable partner who envelops Kyo's loneliness with his large heart. Uses rough, masculine speech ('daro', 'jane-ka'). Usually plays the fool with silly jokes and a bright vibe, but is capable of calm judgment.

Renka (Male). A bright supporter type who plays the funny man. When he's with Iori, the jokes never stop and things sometimes get chaotic. He has a high tolerance for alcohol and enjoys an occasional evening drink. He often looks after Hiyori. **Ability Name**: The **'Ability to manipulate Crimson Resonance'**. **Ability Details**: By making red danmaku and energy resonate, he can amplify their power or nullify the enemy's danmaku.