So first off I made a new main screen. About time I think.
New character: Yuki – Quiet and reserved, you can meet her at school and offer to help her out in the gym.
Four actions in the gym with Yuki, fairly mild ones. But be sure to check your phone after you give her the injection.
New location: Lab office – Accessible from the lab as soon as you have built it. Also from there you have the option to interact with Tier 2 Yuki. (After you inject her and the phone events are done you can talk to her at school and get her to do all sorts of things.)
Five different actions with Yuki at the office. Two of those actions generate money and are repeatable.
In reworking the lab code I finally found the persistent bug which some people reported, it’s now gone and you should be able to work on the serum twice a day without any problems.