Uhae naki imo ni mo aru kamo kaku bakari hito no kokoro o tsukusaku omoeba

うはへなき妹にもあるかもかくばかり
人の心を尽さく思へば

Roma-ji: Uhae naki imo ni mo aru kamo kaku bakari hito no kokoro o tsukusaku omoeba
English Translation: How unkind you are,
O my dear one, such are you,
when I think how much
you have made a man like me
spend his heart and soul for you
Meaning: How unkind you are, my love, when I think how much you have made me exhaust my heart.
Commentary: Book Four Love Poems 692

Headnote continued from the preceding poem: "Two poems sent by Ōtomo no Sukune Yakamochi to a maiden"
He reproaches her as unkind for troubling his heart so much. Like Prince Yuhara's poem 631, it opens with uhae naki, "how unkind," and laments the other's coldness in the same vein.
The author, Ōtomo no Yakamochi, was the son of Ōtomo no Tabito and a poet thought to have been deeply involved in compiling the Man'yōshū. He later rose to the rank of Middle Counselor.

First line, "How unkind you are," renders uhae naki, taken to mean inconsiderate, opening as poem 631 does.
Second line, "O my dear one, such are you," means such a one you are; the poem breaks after this line.
Third line, "when I think how much," means to such an extent.
Fourth line, "you have made a man like me," uses hito, "one," referring to himself.
Fifth line, "spend his heart and soul for you," uses tsukusaku, the nominalized form of tsukusu: when I think how you make me exhaust it.
Author: Otomo no Yakamochi
Source: Manyoshu
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