adverb, adverb taking the 'to' particle
unconcernedly; nonchalantly; shamelessly; brazenly
Describes someone appearing or acting in a situation where they should feel embarrassed or unwelcome, but they show no sign of shame or hesitation. Often used with verbs like 現れる, 来る, or 出てくる.
Even though he was late, he walked into the meeting room as if nothing had happened.
あんなに怒られたのに、またのこのこ遊びに来た。
Even after being scolded so much, he shamelessly came over to hang out again.