Laplace

Laplace is a Rare Skill.

Unlike most Rare Skills, it normally manifests first as its subskill version, Charisma, and can later develop into Laplace in a similar manner to how Rare Skills rise in rank. It is also possible to have Charisma as a subskill alongside a Rare Skill that isn't Laplace.

Although Laplace was considered a theoretical possibility during the events of Assault Lily: Bouquet, its existence and effects were still uncertain. The deceased Kawazoe Misuzu was thought to have possessed Laplace, and Mashima Moyu suspected that the skill was able to manipulate people's memories. (This may have been a result of confusion with Misuzu's actual Rare Skill, Rank S Übersein, but it is unknown whether this is true in the anime/game continuity.)

Hitotsuyanagi Riri mysteriously awakened to a power beyond that of Charisma during the Shinjuku Area Defense Collapse, and by using it, she and other surrounding Lilies were able to execute a 19-person Neunwelt Tactic. It is Futagawa Fumi's belief that this ability was Laplace, though this is unconfirmed.