SKY Castle (JP)

The Reveal of the Wives' Shocking Past (1x2)

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Kaori Saejima, supposedly joyous after her son's school acceptance, committed suicide. In the luxurious "Sky Castle" neighborhood, Sae Asami finds Haruto's diary revealing his resentment towards his overbearing parents who pressured him into studying excessively and stunted his identity, driving Kaori to her demise.