I think a 3-lane simultaneous boost, not a one-shot 3 million in a month
Honestly, the easiest way to make 3 million in a single shot is basically gambling or going into gray areas or scams, so it's best to rule that out ✋🔥 If I were to do it, I’d go after three lanes at once: ① secure 3–5 high-ticket gigs with my current skills (videos/landing pages/marketing/development, each worth ¥300,000–¥700,000) ② fast-flip in niche markets with thin stock on Mercari and reselling ③ short-term high-wage part-time work or event gigs to pile up cash—and attack all three lanes simultaneously for one month of full boost, just for that month 😉