Season 1

Sakura has to adjust to Dokuro, her killings, his classmates wailing on him, and trying to keep his sanity in the pilot.

Sakura meets Sabato where she and Dokuro finally explain why they have been sent to assassinate him.

Sakura and Shizuki help Miyamoto have a get together with his secret admirer.

Sakura and Shizuki go to the movies for a date, but things go awry when Dokuro follows and when Sabato remakes an appearance.

The class goes on a camping trip where Sakura tries to impress Shizuki, but tries not to be killed by Dokuro for various reasons.

The class goes on a test of courage through a dark forest to reach a mountain peak. With Shizuki getting lost in the forest, Sakura tries to search for her.

Sakura meets Zakuro where she explains that she needs to take Dokuro back to the future.

Sakura is left with a choice if he wants Dokuro to stay with him or not.