Episode 4: During the process of MS looking for secrets, he found out that the manual was still in SONA, and thus realized that Xiao Su was also trapped in SONA.
Episode 5: Out of brotherly affection, MS started to help Xiao Su break out of prison.
Episode 6: During the breakout and the search for the Fisherman's secrets, they encountered some thorny problems. It was at this time that Lincoln appeared.
Episode 7: With Lincoln's appearance, Sophia also joined in and began to provide them with some information about the Fisherman.