Seraph of the End - Season 1: Episode 12

Yu has been in a coma for five days when Shinoa confronts Guren about special drugs in Yu's pill. He tells her to go and wait for Yu to wake up if she really cares for him. During the seventh day of his coma, Yu wakes up. He finds out that Mika retreated with the other vampires. Once all his friends have gathered he thanks them and apologizes to them. At the end of the episode both Yu and Mika promise themselves they will save the other.