Step 1: Sneak into Parliament undetected. Whack any guards over the head with a broom handle.
Step 2: Deploy sleeping gas during a Parliamentary session.
Step 3: Carefully install voting software on all the voting machines, allowing world2ch or open2ch to have the real control over decisions
Step 4: Impeach Sanae from her position and vote to have emergency referendum to disband parliament and make Japan into a textboardocracy.
Step 5: Give yourself a round of applause for creating the best society man has ever seen.