[Bern-san]

The second OVA has to be the best thing of the whole anime adaptation.
Anime-only viewers may be confused, but the OVA was included with a manga volume so this is aimed at manga readers mainly since we are able to see Shibuya and his mansion plus other manga-only elements. Despite this, anime-only should watch this OVA because it's hilarious.

Spoiler for OVA 2:

First short is a beach episode with a bit of Sakura and Prince fanservice, more comedy and they even included Heike, Shibuya and Sakura's lost forms.

Second short is about the group going to flower-viewing. A very cute drunk-Prince who was clingy to Shibuya (Shibuya should have taken advantage to make her admit that Shibuya is the true ruler of the mansion and not her). Other characters like Heike and Toki were also drunk and we had a little "romantic" scene between Sakura and Ogami with the cameos of the Emperor and Inoichi!
Didn't know that Inoichi had green hair.

Third short is a Nyanmaru special like in the previous OVA.

After the ending there's a fragment with Heike being fabulous, totally worth it.

It's a shame how bad they messed up the story in the anime considering the manga looks like is ending soon.