A mostly automated quest. After the future Lone Wanderer clears Catherine's vagina, Dad will immediately focus on the newborn instead of attending to his wife. The player is prompted to select the gender of their character, then the name, and finally customize the appearance using the Gene Projector. Once these are done, Catherine promptly goes into cardiac arrest and dies.
The quest fast-forwards to Vault 101, where James took their child under Star Paladin Cross' escort and bribed his way in with his skills as a doctor. The sequence begins with a tutorial on how to walk. To continue, approach James. He will close the playpen, then leave on business.
The player can open the playpen and roam around the room. The following tutorial introduces item manipulation with the Z key and jumping. To continue, the player has to interact with the You're S.P.E.C.I.A.L! book and set the character's SPECIAL statistics. Afterwards, James will return, introduce the player to the main quest's arc words (Revelation 21:6) and leave.