Firefly (hotaru, 蛍).

Genji is in an advantageous position without opponents, having delegated many responsibilities to To no Chujo. Tamakatsura, troubled after a confession from Genji, continues to distrust him despite his remorseful and fatherly behavior. Genji encourages the young woman to meet Sochi no Miya, but she shows no interest, and Sochi no Miya leaves the palace disappointed.
During an event at the residence of the Lady of the Village of Falling Flowers, Genji and the lady discuss other nobles, with her showing interest in Sochi no Miya and Higekuro. The lady leaves Genji alone for the night, despite his willingness to stay.
During the rainy season, the women remain indoors reading and copying stories. Genji finds Tamakatsura reading and starts a discussion about literature. Murasaki, also passionate about literature, is encouraged by Genji not to share immoral stories with Princess Akashi.
Yugiri often visits his half-sister, recalling past times with Kumoi, whom he couldn`t marry. This reignites a rivalry with Kashiwagi, similar to that between their fathers. To no Chujo, father of many children, continues to reflect on the loss of Yuugao, unaware that Tamakatsura is his daughter.
On the background a poem from the chapter:

"Koehasete mi wo nomi kogasu hotarukoso ifuyori masaru omohinaru rame."
"こゑはせて身をのみ焦かす蛍こそいふよりまさる思ひなるらめ。"
"The unspoken love of the burning firefly is deeper than the words you spoke out."