No the existing version goes on for a bit longer with 4 optional lewd scenes and your first character on character interaction albeit it is only in a flashback. The ending is a final optional lewd scene.
At least that will be the ending until the next content update which is according to the dev targeted for mid-July for the subscribestar contributors and probably early august for the public release
Saves are transferrable and are designed to be before you ask so you dont HAVE to do a new save every time you download