[来无影,去无踪 / 來無影,去無蹤, lái wú yǐng, qù wú zōngㄌㄞˊ ㄨˊ ㄧㄥˇ, ㄑㄩˋ ㄨˊ ㄗㄨㄥ] come without a shadow, leave without a footprint (成语 saw); to come and leave without a trace
[じょうしょてんめん;じょうちょてんめん, joushotenmen ; jouchotenmen] (n, adj-na, adj-no, adj-t, adv-to) (arch) tender sentiments; being overcome with emotions; having a tender feeling (for a person)