Amazon offers The Promised Neverland Complete Box Set: Includes volumes 1-20 with premium for with free shipping.

Product Description:
Life at Grace Field House has been good for Emma and her fellow orphans. While the daily studying and exams they have to take are tough, their loving caretaker provides them with delicious food and plenty of playtime. But when they discover the horrifying truth about why they are being kept at the orphanage, their lives change forever…

The complete Promised Neverland saga in one stunning box set! In addition to all 20 volumes of the suspense hit, the box set contains an exclusive booklet and a double-sided full-color poster.