Bahasa Jepangnya “dendam tanpa alasan”

dendam kepada orang yang dibenci; membalas kebaikan dengan dendam; dendam tanpa alasan; berprasangka buruk kepada orang berniat baik

being resented (by someone one holds resentment towards); responding to kindness with resentment; unjustified resentment; thinking ill of someone who meant to be kind