暗翼の行方 #インスト祭

theme: Aerial reconnaissance The Sound of the Wind, no percussion, no drum, Reconnaissance is the active gathering of information, such as details about an enemy; it is the opposite of surveillance, which is a passive activity, Fundamentally, it is an operation conducted covertly, While the term originates in a military context, it has also come to be used in general settings to mean "gathering information about another party, "