Saikyou wo Kojiraseta Level Counter Stop Kenseijo Beatrice no Jakuten (4) Sono Na wa "Buu Buu"

is the fourth volume of the Saikyou wo Kojiraseta Level Counter Stop Kenseijo Beatrice no Jakuten Sono Na wa "Buu Buu" light novel series, written by Kazuma Kamachi and Illustrated by Mahaya. It was released under the Dengeki Bunko Imprint in March 2017.

Synopsis
A mysterious [sage] who has withdrawn his hideout and dazzled his whereabouts. Although he was once defeated by the [Sage], Boobu and Beatrice aim for training and ability improvement with the aim of winning in the rematch. Training in the mountains! And a training menu in the mountains of Grands Neil. Beatrice, on the other hand, was visiting a popular shop in the city where he could easily attach a status-up [buff]. However, the one who greeted me at the doorway was a [wise man] wearing a cute pretending waitress clothes !? [Royal Elf] Sibyl was also serving customers with a smile, and this really fought such a deadly battle. Is it the same person as? It is one with the purpose of the [wise man] who is not very popular and shakes the story of the chest. I don't think I'm working part-time due to lack of money, that [wise man]!

(source: Dengeki Bunko Official Website - Translated)