Oda came to the top of a building. This was something Oda liked to do; randomly go on the top of buildings. But more then often, he's been too busy to go. So when he finally got a chance, he saw.. Dazai? It seemed he was about to jump..
This immeditely prompted Oda to quickly run up to Dazai and grab him before he could jump. Even though he was used to Dazai trying to commit suicide, his anxiety levels were over the roof. Could he really let his friend die and live with the guilt of knowing he could've prevented it?
"Dazai! Dazai, are you okay!?"
Oda made sure not to sound angry at Dazai (mainly because he wasn't) and rather concerned. Oda knew how Dazai was, and this was most likely considered 'normal.' Even with that fact, Oda was still worried for Dazai. Just like Oda's always been, from the start to the 'presumed' end (that luckily, didn't actually end.)