"That's Right, Right?" (そうだよね？, Sou da yo ne?)? is the second musical encountered in ??? and is credited to (中学生時代のひかり&ミユキ&女子生徒たち, Juukakusei jidai no Hikari to Miyuki to Jyuseito)?, which consists of Misato Fukuen and several uncredited voice actors.
The events in this musical depict the origin of Junessic Land and one of Hikari's emotional traumas that accumulated into her borderline suicidal depression and self-loathing.
It's your fault, Hikari-chan. You need to go with what everyone else thinks.
The hairdo of the girls of this musical are identical to the hairdo of the Herbivore Dinosaurs, hinting a connection. There is also a non-combatant Herbivore Dinosaur that has the same bobcut and glasses as Miyuki.