Vampire Dormitory Vol. 5 (Kodansha, 2021)

Not wanting to give Mito up to Ruka, Ren uses his dhampir magic to turn her into a him! Mito's days pass one by one as the chance for Ruka to recognize her as his destined partner grows slimmer and slimmer… But then, Ren's father creates a female doppelganger of Mito to steal Ruka away! Will he be able to tell the difference in time?! It's one turn after another as the heart-pounding boys' love-esque romance drama continues!