The Great Dragon Battle (Part 1) is the 11th chapter of the I've Been Killing Slimes for 300 Years and Maxed Out My Level Manga.
Synopsis[]
Surrounded by the Blue Dragons, Laika mentions to Azusa that the dispute between the two clans is mainly due to the leader being jealous of her sister's wedding. The Blue Dragon leader Flatorte confirms that notion and further claims that she not only plans to crash the wedding, but freeze the volcano crater as well. With the wedding jeopardized all of the Red Dragons plan on fighting back and Azusa embraced by the twins, looks for Halkara who was playing dead as a safety precaution. It's something she once learned from her uncle, but after being nearly crushed to death by a Dragon, Halkara snaps out of her act.
Watching the chaos from afar, Azusa tries to hide everyone in the forest, until they're confronted by a Blue Dragon. After threatening to hurt them all and hearing the cries from the twins and Halkara, Azusa beats the Blue Dragon into submission. She then has her family hide in the forest as she heads into the battlefield to deal with the Blue Dragon invaders and does so with relative ease. After dealing with a majority of the Blue Dragons, Azusa confronts Flatorte and after a brief skirmish between the two defeats the Blue Dragon with a drop kick. Threatening the remaining Blue Dragons, they all flee due to Azusa's threat and immense power. Although the situation there has been handled and Azusa is praised by the Red Dragons, they recall that there was a 2nd group of Blue Dragons who intend on freezing the Volcano.
Meanwhile, at the volcano hot springs, Beelzebub takes a dip feeling relieved to take a break after a hard day's work.