Shukkeisha - Shigeisha

Japanese: 淑景舎 - しげいしゃ

[1] Located in the northeastern corner of the Imperial Palace, north of the Shoyosha, this palace consists of two parts, a north-south palace. It was the residence of the Empress and her concubines. Kiritsubo. Shigeisa. ※Nihonkiryaku - Enki 15 (915), May 6th "Rain. Tonight, it is the hour of the tiger. The Shigeisa palace falls down." ※Taiheiki (late 14th century) 20 "Unable to rest peacefully, I stayed up all night beside the Shigeisa palace." [2] Shigeisa is the nickname for the Empress and her concubines who lived in the Shigeisa palace.

Shigei-sa [Shukkeisha]

[1] ＝Shigeisha (Shukkeisha) (1) ※Makura (10th C. end) 90 “Now the two of them are the Empress and Shigeisha, and soon they will both be wives.” [2] 〘Noun〙＝Shigeisha (Shukkeisha) (2) ※Makura (10th C. end) 104 “Shigeisha is slightly to the north, facing south.”

Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information

Japanese:

[1] 宮中の東北隅にあり、昭陽舎の北に位置する、南北の二部からなる殿舎。女御、更衣の住居。桐壺。しげいさ。※日本紀略‐延喜一五年（915）五月六日「雨降。今夜寅時。淑景舎顛倒」※太平記（１４Ｃ後）二〇「淑景舎(シケイシャ)の傍にやすらひかねて立ち明かす」[2] 淑景舎に住む女御、更衣の通称。しげいさ。