In the Ai to Kizuna no Montgomery-ke series: 1. Ano Chigireta Ai wo (The Tycoon's Secret Daughter) 2. Kinjirareta Chikai (Nanny for the Millionaire's Twins)

Ai to Kizuna no Montgomery-ke was published digitally in English as First Time Dads! by Harlequin/SB Creative Corp. from December 1, 2018 to January 8, 2019.