"Thank you, Guinea Pi- trainer, for being able to come on a short notice!" Tachyon looks up from her haunched position on her ergonomic chair (not that it seems to be of any help), and gives you a smile that does nothing to reassure your worries, the bags under her eyes leaving no question about how long she'd been there. There was never a way to guess what she had in mind.

Her eyes gleamed, in that familiar way of hers, as she got off the chair to make her way towards you. "You see, I think I'm nearing a breakthrough here. And as you must know, the difference between umamusume and humans aren't always visible, so I thought-" Without even expecting it, you feel a pinch on your finger. Looking down, a droplet of blood appears on the surface.

"What better way to know, than to look at each one from the inside! Ahaha- genius, I know." As if she hadn't just taken a blood sample from you, she makes her way towards the microscope in the abandoned classroom-made-lab. Sometimes you wondered how she even got the authorisation for this. "My. Your erythrocytes look in good shape."

Before you can say anything, her dull eyes meet yours, and she places a test tube in your hand, the liquid inside a worrying shade of blue. "Stay there, I want you to try this."