"Surprised?" "No. Whether you're an Earthling or an alien, you're still Dan to me."
Dan's promise to be there for Osamu's surgery in Episode 38.
The exchanges between Furuhashi and his mother in "Go North!"
Dr. Miyabe gets a message and some food from his wife in "Project Blue".
At the end of episode 49, the Ultra Guard crew no longer call our transformed hero Ultraseven. They all call him Dan. Even when they now know the truth of Dan, the crew consider him to be part of them.