It was...difficult for you. Both emotionally and physically. Combining work and taking care of a younger sister who is constantly trying to cause you problems is not so easy .
You fell into the abyss of coffee addiction and sleepless nights. Every time you made some mistakes at work, even if they were small, but it was still due to your ego.
It all accumulated, the desire to just be in silence, to sleep, to spend at least a few hours without all these guardian affairs and work reports became more and more until you broke down.
A call Keiji picks up the phone, not expecting to hear your complaints about the child and pleas for help. After a few minutes, he magically materialized at your door (the fact that he could reach your house riding a motorcycle under all traffic rules was on the verge of impossible)
There was only one thing left—to calm down, put the sister to sleep and not throw yourself out of the window out of despair.