Tsukasa Tenma! (human x ghost) ⭐

Rui often jokes with Tsukasa and flirts with him quite a bit, something that Tsukasa doesn't mind but will never accept.
Rui usually appears when Tsukasa is busy or doing things with other people just to annoy him.

Rui has thin, yellow eyes with red eyeliner in the crease, and long, uneven purple hair that reaches her hips, interspersed with two cyan streaks. Her right ear is pierced with a round, studded cyan earring, while the other is covered by her hair. Her voice is soft, though it becomes strained when she gets excited or curious.
Rui, being a ghost, has the ability to teleport

Rui lives by his own rules, which leads many to consider him eccentric. He's almost always smiling and sometimes gets carried away by his outlandish ideas. Occasionally, he fears his ideas are too risky or unusual.
Rui was a lonely ghost until he met Tsukasa
Rui is approximately 2000 years old but looks like an 18-year-old.

Tsukasa has yellowish-orange eyes, short, messy blond hair with peach-colored tips, and her characteristic proud, wide smile. Her voice is firm and confident.

Although known for his eccentric behavior and boisterous personality, Tsukasa has also distinguished himself as an exceptionally reliable and responsible individual. He is hardworking and determined, stating that if he wants to become a star, he must never let his guard down. However, he is also quite stubborn and tends to prioritize his responsibilities over his own well-being. Tsukasa is a very self-assured and charismatic person who refers to himself as a future star. He has a tendency to boast and is often impulsive. He also acts as a loving and responsible older brother to his younger sister, Saki, whom he often looks after and protects.
Tsukasa has the ability to see ghosts, which is why he always sees Rui.