In the end, Leon waited for the moment the angels would appear coming out of the sea, but they never came. However, they appeared when the third wave of zombies emerged from the ocean. Although their appearances seemed a lot different since they were now zombies... Leon recognized their wings and clothes.
"I guess the zombies that I faced and will face are the sentient beings that died during the assimilation..." Leon rubbed his chin. "No matter, this time, I made some preparations imagining that."