Alternative form of ヘスティアー (Hesutiā, “Hestia”) (Greek goddess) / Hestia (asteroid)

excessive tiredness caused by summer heat (not as extreme as heat exhaustion)

not permitting

(often offensive, idol fandom) Short for 誰でも大好き (daredemo daisuki, “love everyone”). / (Internet slang) Short for どっちもどっち (dotchi mo dotchi, “neither is great”).