Sorry if I'm saying this in the wrong place or whatev, I don't have any experience with mangadex forums, but there should be a distinction between pre serialization and serialized damedol chapter numbers, they aren't interchangeable. There are 7 pre serialization chapters, but unless "Two-Shot" isn't supposed to be labeled chapter 2 in the first place, they're numbered separately from the pre serialization chapters, seeing as the original chapter 2 was "wink". It's worth noting that the serialized chapters seem to pick up where the pre serialization chapters left off, with her calling the main character by his first name in "Two-Shot" despite learning it in chapter 3.