DARLING in the FRANXX Manga Omnibus Volume 3 collects volumes 5-6 and features story by Code:000 with art by Kentaro Yabuki.

Hiro and the other parasites are granted a much-needed beach vacation. However, instead of unwinding in relaxation, things intensify among the members of Squad 13—especially Zero Two and Ichigo. While Zero Two balks at taking orders from anyone, Ichigo strives to be the leader that Squad 13 needs. When a new type of Klaxosaur arrives, will the squad be able to work together to take it down before it destroys the Plantation? Or will their emotions get the better of them?