To commemorate the release of "Yugen Tower and the Sleepless Butterfly" and the distribution of the main story, a campaign is being held to win an autographed colored paper and an Amazon gift code worth 1,000 yen by Noboru Tetrapot, who plays the role of the night sword.

To commemorate the release of "Yugen Tower and the Sleepless Butterfly" and the distribution of the main story, a campaign is being held to win an autographed colored paper and an Amazon gift code worth 1,000 yen by Noboru Tetrapot, who plays the role of the night sword.
To commemorate the release of "Dreaming Tower and Sleepless Butterflies" and the distribution of the main story, a campaign will be held to win an autographed colored paper or an Amazon gift code number worth 1,000 yen by Noboru Tetrapot, who plays the role of the night sword!...

The linked article is in Japanese.