@VINT64 This is the actual chapter 4 like GM_Rusaku mentioned in his release. Chapter 4 is them preplanning a date and chapter 5 is a date at the aquarium.
@Xirre I think his version is from pixiv. Ours is from the serialization. We noticed minor differences between the two versions (change in furniture/clothing).
There was some leftover special chapters that aren't translated to English yet as well as a ton of extras in each volume. I'm working my way through them but I need help translating the Japanese raws to English.