Am I Actually the Strongest? Vol. 12 (Kodansha, 2024)

All Haruto has to do is bring back the Holy Relic from the Olympius Ruins and he'll be free from taking any more classes! Or…that's what he was told to do. Instead, Haruto just made his own Holy Relic and…tah-dah! It'll be “mission cleared” for Haruto soon! There's no time to waste. Time to present his homemade Holy Relic to the headmaster! As all this is happening, Haruto also has his hands full when Mer suddenly goes up to Haruto and calls him…mommy?!