These 3 episodes are the conclusion of the tournament started during the first season.
Slightly resuming the end of the season, they deal with the match between Seiseki and Touin Academy.
These episodes are in the continuity of the previous ones and there is therefore no big surprise. If you enjoyed the first episodes, you will have here the end of the tournament and thus of the bow.
A good point however, the OST is enlarged and therefore there is less repetition of themes, which was the case in the first season.
As for the scenario of the match, this one is rather weak, especially compared to the previous ones.