In the animated episodes, the only ones who meet up with the tentacle venus flytrap monster are kuouzumiaiginsusutakeizumonokamimeichoujin mika (the surfer) and amamiya momona (the brown haired friend of maya's).
Which makes me a little sad, cuz the anime is missing some scenes which would have been awesome. ie. threesome with mika and kanae's (post #181457 comes to mind)