Resized to 65% of original (view original)
Artist's commentary
Kotori-chan
Kotori-chan will explain anything so
By all means I want her to explain why she goes no-bra ( ˘ω˘ )
For supporters there are full-size versions with breasts out and hand-bra.
https://ug110.fanbox.cc/posts/3467062
https://fantia.jp/posts/1145828