Drain Lab

The Drain Lab is a location that appears in Chapter 3 of this series.

Only this cropped image can be shown here because of the excessive 18+ content in all of the full versions.

The place/images are made by a new artist, Xelvy (Pixiv page).

The cropped image is from the Bad-ending scene when Luka surrenders to Promestein and the Next Dolls during the invasion of the Monster Lord's palace. Shown is the assistant Radio. The Bad Ending takes place if Luka decides to surrender to Promestein in the Monster Lord's Castle. Arc-En-Ciel takes Luka to the Drain Lab, where he is raped by Promestein's inventions. This Bad Ending is required to see all of Promestein's CGs

The Drain Lab is shown in Chapter 3 as well when Promestein awakens after her first battle. She meets Laplace, La Croix, and Lucia. It is shown again in other scenes involving the meetings of the Seekers of Truth and the Next Dolls.

The following battles take place in the Drain Lab:
 * Drain Plant
 * Drainroid
 * Laplace