World's End Harem manga volume 12 features story by LINK and art by Kotaro Shono.

The MK Virus finally bares its fangs as Reito struggles to create a vaccine. Will his research succeed in time? Will he even live to see the results? Meanwhile, Kyoji, Yukari, and their baby escape UW’s Japan Branch together with Chloe hot on their heels! What are UW’s true goals? Fates collide as this tale of erotic suspense reaches its climax!