Resized to 60% of original (view original)
Artist's commentary
Two-person room
The illustration published in Shinyusha's 2011 [touch (タッチ) Vol.6].
http://amzn.to/1RQeg6L
Source: illust/56234448
sister
This picture was published at the magazine"touch vol.6" [link]
Source: https://www.deviantart.com/tomiokajiro/art/sister-283034475