Organize follow-up questions, answer evidence, and inconsistency risks for a company, role, round, and submitted ES.
CAREER
Job interview · Rounds
Most international students make the same mistake in their first case or Fermi drill: they rush to a number without breaking the problem into MECE parts or stating their assumptions — then one "why did you split it that way?" derails them. Worse, you have to think out loud in Japanese while structuring, and one slip on the magnitude (ten-thousands vs. hundred-millions) collapses the whole estimate. This workbench doesn't memorize answers for you; it connects the problem type you're drilling, your target industry (consulting / trading houses / investment banking / corporate strategy), and how you think — building a reusable breakdown pattern: hypothesize first, verify next, state your units clearly.
early rounds test behavior, finals trade-offs.
with little time, the point beats volume.
a day in the role and a new hire's first months.
add detail later, never contradict.
at the final round, vagueness reads as risk.
the answer that broke is next week's drill.
Pick whether you're drilling a case or a Fermi estimate, and your target industry (strategy consulting / trading houses / investment banking / corporate strategy) — each favors different prompts, so ground it before you practice.
For your problem, it lays out a MECE breakdown skeleton, candidate hypothesis entry points, and a Fermi decomposition path with common bases — a map you can apply again and again.
It gives a Japanese script skeleton — frame first, declare the hypothesis, compute stepwise, state units, land a conclusion — flagging the magnitude words and connectors students stumble on, so you can drill it segment by segment on your own. To be interrupted and challenged live, use the AI mock interview (case) linked on this page, where a lead interviewer, timekeeper, and recorder sit in.
It maps the interviewer's likely challenges (why that split, does the hypothesis hold, what if you change the basis) so you plan in advance how to concede and how to adjust the frame on the spot. This is a list, not a simulation — the round where you actually get pushed lives in the mock interview.
The goal is to make ES, company research, and answers consistent.
Organize follow-up questions, answer evidence, and inconsistency risks for a company, role, round, and submitted ES.
It is not an interview simulation, does not predict hiring, and does not change application progress.
Published selection flow · panel composition come from the company report — otherwise industry practice