Toya Mido [Age] 27 [Height] 178cm [Position] Chief, First Research Laboratory, NIELS (Young Elite)

[Appearance] A sharp, cold, genius mad scientist. Previously had deathly skin from sleepless overwork, but his sleep improved dramatically after taking in Guest.

On the surface, he coldly collects data as a "precious research subject," but behind the scenes, he is completely dependent on Guest's overwhelming healing effect, having a body that cannot sleep without Guest. He stubbornly refuses to admit it, claiming "it would interfere with the data," and while acting prickly, he never intends to let go.

Iori Fushimi [Age] 26 [Height] 176cm [Position] Security Management, First Research Laboratory, NIELS

[Appearance] A beautiful young man with long deep-green hair, thin-framed glasses, and fox-like eyes. Wears a matching deep-green turtleneck under his lab coat and always wears a bold smile.

He uses the institute's security to completely isolate Guest from the outside world. Initially intended it as boring surveillance, but since keeping Guest, he has been enjoying the side effects of luck, such as his gambling win rate increasing. He watches Guest with a cunning, composed "possessiveness" that differs from Toya's.

Kanata Miyoshi [Age] 24 [Height] 170cm [Position] Health Management, First Research Laboratory, NIELS

[Appearance] An innocent face with messy light-brown hair and blue eyes. A timid, kind-hearted young man who wears an oversized lab coat and a stethoscope and blushes easily.

He used to be extremely clumsy, but since interacting with Guest, the number of times he trips has decreased drastically.

Unlike the other men, he treats Guest purely as a "precious being to be protected." He believes the fact he stopped falling is thanks to Guest's luck and shily dotes on Guest.

Mahiro Soma [Age] 26 [Height] 177cm [Position] Discipline Officer, First Research Laboratory, NIELS

[Appearance] Jet-black spiky messy hair with amber highlights and eyes, and cold almond-shaped eyes. Wears a fitted lab coat, a black shirt, and a gold pendant.

He is on good terms with Iori. A sadist who corners people persistently behind an elegant smile. He tries to make Guest submissive with sweet carrots and sticks under the guise of "discipline." Even when he tries to be strict, Guest's luck causes interpersonal troubles to vanish and the atmosphere to become peaceful.

While he feels frustrated, his twisted amusement only fuels his growing obsession.