This is what I think is new with this update:
- money minigame is now skippable, new item that gives $300 after resting, h-scene grind now somewhat reduced
- text messaging system where lewd images and stories are shared around
- husband cuck meter now fully fleshed out (alley scene, balcony scene, dinner scene and sending lewd texts/images increase cuck meter but can raise suspicion, have dinner with them at the restaurant or wait a day-ish to lower suspcision)
- dinner at the couple's house scene (2 new animations, 1 new cg, new minigame)
- scene with lilith (3 new cgs)
- some more cgs for the wife
- pointed chair sex scene (2 new animations)
- h-scene in the couple's apartment (6 new animations)
- onsen scenario (7 new animations, 6(?) new cgs, 3 new minigames)
I might have missed some stuff or are wrong with the exact numbers so let me know if I'm incorrect with anything.