you could try DMing them on the original update site but if you do please remember to be respectful https://mangatoto.com/title/160249-yowaki-na-kimi-to-nagai-shiawase
this is also just food for thought, but I'm assuming they're still translating the series since they've actively been doing it since the first volume. with that said I'm pretty sure they're a solo translator so that means they're doing everything from translating, cleaning/re-drawing, proof reading, typesetting etc which is a lot for one person and takes a good amount of time to do plus whatever else they do in their day to day life. I used to be part of a scangroup and just from the one job I had to do would take me anywhere from 5-12hrs for just one chapter (depending on how much I had to do) and I only did cleaning/re-drawing.

Is this completed already? Is super cute thou but I feel like they left me hanging