You only have two Anna events left:
Long picnic short.
(Have 20 or more affection points with Anna, complete “Red String of destiny” and “Shinobi Crisis” events, activates in evening.)
Krusty Krab Pizza.
(Have 25 or more affection points with Anna, complete “Long picnic short” and “Starlit Sky Festival” events and call Anna in the Evening.)
Maybe Kaede events too:
Little sister on the edge.
(Have 17 or more affection points, completed "Drunks in a bind" event and go to Kaede at the Student’s House.)
Izumi Legacy.
(Have 19 or more affection points, completed Little sister on the edge event and go to Kaede at the Student’s House on weekend.)
Starlit Sky Festival.
(Have 25 or more affection points, completed Izumi Legacy event and call Kaede in the Evening.)