Biology-tan

Biology-tan is Physics-tan's alternative sister. She accepts evolution, and sometimes everything. She hates nonsense like Math-chan, and she likes her elder sister, Chemistry-tan.

She is agreeable, hardworking, quiet, smart, caring, and cooperative when she is older. She loves Math-chan and the others, Physics-tan (Subject-tan), and Chemistry-tan.

Her dislikes are nonsense, fighting, noises are that are made of total nonsense, or deleting her subject sisters. When someone (the user) makes nonsense out of her, she will not accept the opinion.