[JEEB]

Spoiler for The game on her table...:

seems to be Angel Wish ~放課後の召使いにチュッ!~ (Angel Wish ~A kiss to the after-school servant, chu!~) with Peace@Pieces behind (can be seen when Yui-neesan goes to read manga)

and

Spoiler for the "unknown figure...":

might be this (clicky), although the colouring is different.