So this episode is one the romantic event ones which this series usually does. At the near beginning, one of the Goddesses revealed herself and Keima will have to "capture" the love from her for the entire episode.
Anyway, it's just quite heart warming or touching from the episode. Keima is just awesome due to his experience from visual novel games and real girls. However, I still wonder how he'll serve his problem if one his conquered girls with the memory think he's a cheater/play boy (and that's what season three is doing). Overall, another great episode series so far.
Conclusion: Awesome episode and it's getting better.