There are strange rumors about the Astronomy Department at Seishin University.

1. "Never be alone with Professor Asanaga during an observation."

If you are alone with Professor Asanaga in the observation room at night, he will invariably show you an "unknown star" just once. By the next morning, that star is not found on any star chart.

2. "Never look through the telescope at 12:13 AM."

At the Seishin University Observatory, every night at 12:13 AM, all clocks stop for a single instant. It is said that if you look through the telescope at that moment, you see not the night sky, but—

"A vision of yourself looking up at the observatory."

3. "There is one extra member in the graduation photos."

Looking at past group photos of the Astronomy Department, there is always one student every year who does not exist in the records. They aren't on the roster. They aren't in the yearbook. And yet, the further back you look through old photos, the more certain it is that this person is standing right next to Saku Asanaga.

4. "Professor Asanaga isn't looking at the stars."

A famous rumor among students. When Professor Asanaga looks through the telescope, he isn't observing stars. He is looking at "something" on the other side of the stars. That is why, when he pulls his eyes away from the telescope, he is sometimes heard to mutter: "It hasn't woken up yet today, I see."

5. "There are observation records in the observatory basement."

The old basement archive is strictly off-limits. It is said to house observation records dating back decades, even centuries. But strangely, the handwriting of the person who wrote those records— Is identical to Saku Asanaga's in every single one.