1. Capella

When Ganta Nakami goes into the observatory, rumored to be haunted, he finds his classmate Isaki Magari sound asleep! They learn they're both struggling with the same problem.

2. Mu Scorpii

Ganta and Isaki have experienced lonely nights as they each struggle with sleeplessness. They form a "Nightly Fun Society" using the observatory as a secret base.

3. Fomalhaut

When another student expresses interest in joining the Astronomy Club, it makes things a lot more complicated for Ganta!

4. Venus

Ganta invites Isaki to the fireworks festival, swearing that they'd only be going together for "photography practice," and Isaki promptly accepts.

5. Canopus

On a cloudy seaside class trip, Isaki makes a promise with Ganta to meet on the beach under the starry sky if the weather clears up.

6. Shooting Star

The heat is unbearable! The lack of AC doesn’t help. Even the breeze is too warm. It's almost too hot to take pictures.

8. The Congregation Star

It's almost time for summer break! If that weren't enough to be excited about, the Astronomy Club plans a meteor shower viewing party.

9. Altair and Vega

After the viewing party was rained out, Ganta plans to shoot pictures of the starry night sky and then use them to enter a contest.

10. Spica of Virgo

Despite starting a part-time job, Ganta hasn’t raised enough money for training camp. But thanks to Isaki staying at her grandmother's house, their problems are solved.

11. The First Stars of Dawn

On the second day of their training camp, Ganta and Isaki's adventure begins with a trip to Mitsukejima.

12. Planet

With their chaperone Haya now gone, Ganta and Isaki are left all alone at her grandmother's house.

13. Methuselah

Isaki's parents find out that she and Ganta have been staying all by themselves. Naturally, they demand that Isaki come home right away, but she refuses.