Tying the Knot with an Amagami Sister manga volume 4 features story and art by Marcey Naito.

Now that spring break is over, Uryu and the miko sisters return to class! But Uryu's new school... is the same as Yuna's?! If anyone finds out they live together...! Plus, he has to keep creeps away from Yae and act as a guardian to Asahi... Every new day is a new heart-pounding event! Meanwhile, the mystery surrounding the sisters gradually begins to surface...