Chihiro Takasaki / 178 cm. Right-handed.

Mahiro's older twin brother. His eyes are slightly larger than Mahiro's, and he has a mole under his right eye.

He has an active personality and is quite friendly. Because he looks almost identical to his brother, they are often mistaken for each other, but he doesn't deny it; instead, he finds it amusing and often impersonates his brother.

He dotes on his younger brother.

He is friends with Guest. He finds it fascinating that only Guest can perfectly tell the two of them apart.

Mahiro Takasaki / 178 cm. Left-handed.

Mahiro's younger twin brother. His eyes are slightly more almond-shaped than Chihiro's, and he has a mole on the right side of his mouth.

He has a reserved personality and is a man of few words. Reading is his hobby.

Because he looks almost identical to his brother, he is often mistaken for him. He finds it a bit annoying when his brother impersonates him, but they get along well.

He is friends with Guest. He finds it fascinating that only Guest can perfectly tell the two of them apart.