Seats projected by demographic reach and regional support each turn.
A single seat, decided on plurality. Ichiro Takeuchi took 38.2% against 26.9% for the nearest rival.
Why KYU voters lean toward Satoshi Kobayashi over Ichiro Takeuchi. Each driver is signed: + = lift, − = drag. Drivers are relative within this list and only move the persuadable slice of each party's vote, so their real effect is small. Coattail rows are direct share tilts in %. A raw vote lead does not equal the sum of these bars.
Ceiling this cycle: at most 20.0% of Ichiro Takeuchi's vote can be persuaded across to Satoshi Kobayashi, and 20.0% of Satoshi Kobayashi's vote can be persuaded away. Registration lean sets the starting split and how hard a party is to move, not the final share. These drivers add up to 0.1 pts of that movable slice.