I (as a fanslation reader) want nothing more than for 100 girlfriends to get a 3rd season with 2 cours that ends with the adaptation of chapter 99, won’t spoil as to why, but getting to see up to girlfriend #19 and ending the season with that chapter would leave me satisfied with the anime adaption. Of course I would want more, how could I not? But I think with 3 seasons, 48-49 episodes, 19 girlfriends and such an ending would be fine by me.
Yess that rentarou chapter is one if my favs! It really showcases that Rentarou being who he is and how genuine he is is a huge part of why this manga works so well. And don't worry, there are plenty of these heartfelt moments past this volume so look forward to it. Also two of my fav girls are next volume. Can't wait for your next review