Scene doesn’t have a male involved with the girls at any point. (If a guy is only watching the scene happen, this tag still applies. If a male is involved from the start, the “Male Involved” tag is used. If the scene starts as yuri, but eventually a male joins in, the “Male Joins” tag is used.)
Series Page
Raw Chapter Link
Rating: 5
All of the girls are shown taking turns having lesbian sex with Yuuna.
This was a part of the Special Edition release for Vol. 6, so it did not receive an official translation.
Series Page
Chapter Link
Rating: 5
Heeji meets her clone while staying at Hyunseo’s place.
When Hyunseo gets home, she has a lesbian threesome with Heeji and her clone.
This also confirms Hyunseo took home the clone back in Ch. 33, so I’m putting the Implied Sex and Off-Screen tags here.