[...] [Setsuna stops walking when he catches sight of a certain two in the common room.]
[The earlier scene at the network is indeed concerning. But, Setsuna believed in both Akito and his friend, Tsuna. He knew that those two can be definitely be strong enough to handle what they face. He had that feeling, just hearing their hearts speak. Setsuna is just silently supporting them.
And if they just continue to believe, then that's all they truly needed. No one has the right to tell them what is wrong or not. It's memories and experiences, what they face in life together, it's those that spell the truth out for all sides. Nothing can change that. Nothing can take that away.
For now, all he can really do is continue to support them.]
[After a moment of his own reflection, he approaches them, nodding wordlessly in greeting.]