Happy Lesson: The Final is what you can call the culmination of the whole series. On the contrary of some who hated the ending (obviously because their "best girl" bet lost), I actually loved the ending, because, tho it was a bit to be expected, it made something you don't see everyday happened. Well, of course a teacher x student ending is not normally seen and is highly criticized, for me, it was something interesting. The OVA did decently well on that matter. At the end of the day, I think that this series was enjoyable and interesting overall. There are some boring moments, but thecomedy and romance part made up for that.

10/10 for me.