Complex sentence: After getting out of the hospital, Yamanishi discovers he has been taken off of the serial murder case, obsessed with solving it, Yamanishi decides to leave the Police force and join Tokken.
Split into simpler sentences: After getting out of the hospital, Yamanishi discovers he has been taken off of the serial murder case. Obsessed with solving it, Yamanishi decides to leave the Police force and join Tokken.