Like all OVAs that Ive watched so far this is basically made for the fans.. it really just is complete randomness that.. since I havent read the manga.. I found funny just simply because of the silly situations..
Let me describe a couple of the episodes for you if youre wondering if its worth taking the time to watch...
The first ep.. Is the gender-bender.. its sort of funny.. I think people who like to watch the gender bender scenarios would probably love this..
The second ep is basically all about Mikan.. Which is a really good plot for a single OVA.. its basically about her growing up..
but realizing shes not grown.. This maybe the ONLY To Love Ru ep Ive ever seen that actually dealt with mildly emotional and structured plots lol...
The third is the resort ep.. this one is purely for the fans of the girls.. There is absolutely no plot here.. no story.. nothing.. I would say its about 12 minutes of just gravure scenes .. of like an idol IV... is it worth watching? well YES! .. if you liked the girls of course..
The fourth ep is the RPG episode.. and the introduction of Lala's twin sisters that she mentions in season 2 but you never see.. I found this episode hillarious.. I love it when anime incorperates RPG themes.. I laughed everytime they "leveled" up.. and the status screen would pop-up.. This one is probably the best to watch of the group also for a LITTLE bit of relationship development.. I think I should just say that.. because I really dont want to spoil it..
The art was great.. the music was pretty good.. all in all.. it pretty much stuck to the randomness of the Seasons 1 and 2... but these are definately made with the fan in mind.. I hope you enjoy!