このような konoyounaポスター posutaaを o貼(は)る() haruには niha許(きょ)可(か) kyokaが ga必(ひつ)要(よう) hitsuyouです desuし shi、だいいち daiichi街(まち) machiの no美(び)観(かん) bikanを o損(そこ)な()い()ま()す() sokonaimasu！ You need permission to put up posters like this, and besides, it ruins the town's appearance! Literal This-kind-of poster [object-を] paste [for-には] permission [subject-が] necessary [copula-ですし], in-the-first-place town [possessive-の] beauty [object-を] damages! だいいち 'in the first place, besides' escalates the argument. 美観を損なう 'to damage the aesthetic/beauty' — 美観 'scenic beauty' + 損なう 'to damage.' ~ですし gives a reason and implies there are more. The speaker is indignant about unauthorized posters. opinionsetiquette~し (listing reasons)
このような konoyounaポスター posutaaを o貼(は)る() haruには niha許(きょ)可(か) kyokaが ga必(ひつ)要(よう) hitsuyouです desuし shi、だいいち daiichi街(まち) machiの no美(び)観(かん) bikanを o損(そこ)な()い()ま()す() sokonaimasu！ You need permission to put up posters like this, and besides, it ruins the town's appearance! Literal This-kind-of poster [object-を] paste [for-には] permission [subject-が] necessary [copula-ですし], in-the-first-place town [possessive-の] beauty [object-を] damages! だいいち 'in the first place, besides' escalates the argument. 美観を損なう 'to damage the aesthetic/beauty' — 美観 'scenic beauty' + 損なう 'to damage.' ~ですし gives a reason and implies there are more. The speaker is indignant about unauthorized posters. opinionsetiquette~し (listing reasons)