I think the graph (posted on 2010/3/30) is a little out of date. For example, it says Mashima-kun and Yaeko are only in "Yamada-san wa Tottemo Baka Nan Desu", but they've since appeared in a Pixiv post (posted 2010/6/16) tagged with "Ishida to Asakura" (post #690980).
Yamaguchi-sensei
UkeMashima-sanParent-child?Blue border - Appears in "Ishida to Asakura"Green border - Appears in bothLikesKinoshita HouseBreasts > IshidaHatesKinoshita NanakoBreastsOKLikesAsakura
Uke (vs. Ishida)
Seme (vs. Yamada)Yamada
UkeYamada fatherAffectionThat was my farewell...Older sisterOlder brotherYounger sisterIshida
SemeYounger sisterLikesLikesKinoshita-sensei (father)Yamada HouseIshida fatherKinoshita motherRelatedJoe SuwabeTeacher and studentOrange border - Appears in "Yamada-san wa tottemo baka nan desu"Parent-childHatesHatesKill!Mashima-kun...to father.Kinoshita-ane Her name is Kinoshita YaekoStalkerYamada Mikoto
