flat chest
極上の貧乳 ぺったんこ 大平原の小さな胸 無乳 ナイチチ 平らな胸 ツルペタ つるぺた 平胸 まな板 flat-chested
A female character with a completely flat chest, that is, no breasts whatsoever. For breasts larger than flat yet smaller than normal, use the small breasts tag.
Flat chests should not be tagged as breasts.
Child characters should not be tagged with flat chest.