Talk:Steins;Gate 0 (visual novel)/@comment-117.254.110.157-20160130085517/@comment-27281875-20160130092526

if you read the Distant Valhalla short story, Kurisu actually started working with SERN in the end of 2011 (after Okabe tried to escape with her but it was a rounders trap, this was the alternate ending where daru, okabe, and kurisu was caught when the rounders raid the lab in 13/8/2010). So the real time limit until Kurisu joined SERN was the end of 2011, IMO.

In Linear Bounded Phenogram VN, she worked with SERN since SERN recognize her father's research and they accepts him. Kurisu joined SERN probably because she still looks for a way to reconcile things with her father.

and in S;G 0 Alpha worldline divergence 0.571082% i recall Kurisu said that Okabe dismantled everything regarding time travel and time machine and the lab is safe but mayuri's death is inevitable in alpha worldline. Everyone never returns to the lab, except Kurisu herself. She comes to the lab since she felt lonely when she doesn't.