Japanese: 夏のお嬢さん
Artist: Wokada

• Pixiv URL: pixiv #38874641
• Niconico Manga URL: NicoManga #mg72131

The background is an edited photo from the website below:

• Yun Free Stock Photos: http://www.yunphoto.net/en/
• Terms for Use / User License page: English / Japanese
• The page of that particular photo: [Photo by (c)Tomo.Yun (Uchida Tomoyuki)]