(1)Kim Sae-ron X Kim In-ki, you must remember to go back home. The promise of the two girls 
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(2)So what Japan is most scared of is…
(3)Kim Saeron X Kim Hyanggi You must remember the promise of the two girls to go home
(4)Professor Hosaka’s thoughts
(5)Peaceful South and North Korea join forces to attack Japan over historical issues
What Japan fears the most is peace between North and South.
What Japan wants most is for the two Koreas to go to war.
Korea’s main enemy is not North Korea and Iran.
Maybe
Japan
Ida.