Shady Laboratory & Manor

The Shady Laboratory, also known as Shady Manor , is the Devil Children series equivalent of the Cathedral of Shadows.

Appearances

 * Devil Children Black Book & Red Book
 * Devil Children White Book

Devil Children Black Book & Red Book
In both versions, fusing any demon with Cool or Veil will strengthen the protagonist's partner by increasing their stats. Not only that, the partners can level up by absorbing experience points from the demons used to strengthen them, thus increasing their stats even higher. However, the partners cannot go more than five levels above the protagonist.

Black Book
The Shady Laboratory is run by Franken. He performs Racial Fusion, in which two demons of different races are fused together to create a demon of a different race than the ingredients. The resulting demon is determined by which races the demons belonged to and their levels.

Red Book
The Shady Laboratory is run by Parallel Sus, who can perform Pure Blood Fusion and Mixed Blood Fusion. Pure Blood Fusion consists of fusing two of the same demon together, which increases their maximum HP and SP as well as unlocking their hidden skills. Certain demons can evolve if strengthened enough times.

Mixed Blood Fusion consists of fusing two different demons together. If the demons are around the same level or the second one is stronger, the result will be a higher-leveled demon of the same race as the first demon. If the second demon is weaker than the first one, the first one will be strengthened and have its stats increased. If the second demon is much weaker than the first one, it's not possible to fuse them together.

Devil Children White Book
Partner strengthening works the same way as the previous games. Both Franken and Parallel Sus work at the Shady Laboratory, giving the player access to all three kinds of fusion.