Students from Danwon High School near Seoul testified for a second day at the trial of 15 crew members involved with the ferry's navigation, who face charges of negligence and failing to carry out their duty to rescue passengers.
The sinking left more than 300 people dead or missing, and most of the victims were Danwon students who were travelling to a resort island on a school trip.
"When I got out of the cabin and moved to a corridor, there was a friend of mine on the other side of a bed (in the cabin) and our eyes met. (My friend) failed to escape," a third student said.
The students' names were withheld to protect their privacy.
More From This Section
The sinking, one of the deadliest disasters in decades in South Korea, has triggered widespread grief and renewed scrutiny of public safety.
Survivors say they heard no evacuation orders, and prosecutors argued that a timely evacuation announcement could have saved more lives.
The defence has denied any collusion, saying the crew members were confused, injured and panicked.
During yesterday and today's trial sessions, student survivors said they were repeatedly ordered by loudspeaker to stay inside the sinking ship, but eventually helped each other flee after their cabins became flooded.
When asked by prosecutors whether they want the crew members to receive punishment, most of the students said they must be penalised in line with the law.
"They should get appropriate punishment. It's something that they shouldn't have done," one student said.