I feel like this manga has lost it's identity. Specifically when it started to ramp up the love triangle between Tando, Komi and Manbagi. The manga became something it's not and is now trying to compensate by returning to the original concept of the 100 friends, but it feels unexpected and jarring. When you focus on the romance for long enough people expect progress constantly and now that were reverting back to the original concept were left disappointed both by the weaker writing and the lack of a decent stream of progress with the love triangle.
I don't blame Tomohito for ramping up the romance stuff but he's gotta finish what he started by concluding the triangle at some point.