well, it's more like in the magazine raws this is chapter 69. The numbering for this series is a bit of a mess depending on where you read it. The magazine, Nicovideo (which I assume is where you got the chapter 102 from) and the volumes themselves all have a different number. Our numbering is also off because of the earlier releases from the original group using nicovideo numbers instead of the magazine.
Pretty much, they are all the same chapter, just numbered differently because of chapters being split or combined on the various sources of the raws. I'm including this chapters raw for the magazine and volume for reference on what I mean. Magazine has this chapter as chapter 69, while volume has it as chapter 53.
View attachment 37427View attachment 37430