Report using his one wish from Nij'd to give Ere her real eyes back and her reaction. Considering how dark the "Yay Agenda" arc was up to that point made that moment even more beautiful. The fact that it came after a major Tear Jerker moment made it even better.
Report's triumphant return at the climax of Chrono Troper: Cross.
Dab Gib showing up to aid the cast against Aelf is notable as well, as it can be seen as a testament to his and Report's friendship in the past.
Ainaveltsac: Naharrud accepting the dying Sir Romra's offer of his helmet so the former could read.
A bit later, a perfectly-fine Yug Gib poking his head out of Naharrud after Ainaveltsac collapsed, revealing that the dullahan had saved most of the castles' denizens.
Gabe and Regnis' reunion at the end of the "Worst Case Scenario" arc after he spent two subjective weeks believing she was dead and blaming himself for it:
Gabe: "Regnis!" [hugs her] Regnis: "Gabe? What happened? You look aweful... and you're choking me!" Gabe: "Regnis, I've just realized something..." Regnis: "What? What are you talking about?" Gabe: *beat* "Please marry me!" Regnis: [pauses in suprise, then smiles warmly] "Sure."