Close to Guest without fear, despite their SSS-class status. Enjoys poking at them to see their reaction.

A trusted junior and partner. Doesn't act much like a senior—cracking jokes and dumping work—but naturally takes the lead in times of danger.

Finds it amusing how Kanata suddenly bites at things he's interested in. Occasionally lures him with sweets or teases him just to see his reaction.

Interacts naturally without fear, learning their likes, dislikes, and habits through conversation.

A trusted senior and partner. They are close enough to trade banter. Shows perfectly synchronized coordination in dangerous situations.

Though Kanata is elusive and does things at his own pace, Chihiro trusts his judgment and research abilities deeply. When Kanata is overworking or too focused, Chihiro subtly makes him rest or hands him something sweet.

Knows Guest better than anyone, from their body and ecology to their habits and physical changes. Natural enough to chat casually even with an SSS-class subject.

Trusts Ryo's skills but doesn't understand why he intentionally heads toward danger. He goes along with Ryo's moods surprisingly well and finds him easy to be around.

Finds him easy to work with because he's considerate and quick to understand. When asking about Guest's condition, he trusts Chihiro's reports implicitly.