some quick spoiler
vol 2 ch 5 - 6 meet silverion sibling from silver wolf clan and become sirius first student
Vol 3 ch 1 - 3 start of training, reus jealousy and sirius vs reus
ch 4 - 6 silverion sibling vow and going to picnic but rare monster "jeweled turtle" come
ch 7 erina's death
Vol 4 ch 1 - 5 they are go to next town named elishion but in the middle of journey they must fight some bandit
ch 6 prepared for entrance exam
ex raiolu journey 1
Vol 5 ch 1 - 4 first day of school and they meet with water spirit user named risu and listen to her problem
and how to find a solution
Vol 6 ch 1 - 2 sirius party try to challenge labyrinth strongest course because of headmaster
ch 3 - 4 dark guild red blood dragon infiltrated the labyrinth and make other student in dangerous position but sirius come
annihilated them
ch 5 - 6 risu growth and sirius past life revealed
ex noel's daughter born
ex raiolu's journey 2
Vol 7 ch 1 - 2 risu true identity revealed as elishion second princess fearis and she want sirius to help her sister
ch 3 - 5 risu kidnapped by her father for marriage meeting to lure out rotten aristocrat, and sirius kidnapped her
in the middle of ceremony
ch 6 - 7 fearis and king's past revealed, and risu's mother last wish
Vol 8 gregory want revolution to make elishion a paradise for human race only and beast kin become slave but it defeated by lord veil and sirius
vol 9 sirius vs lord veil
Vol 10 meet with old (dog) partner who reincarnated and become the legendary white wolf, after visiting erina's grave sirius punish his father and step brother
vol 11 noir and her parent have quarrel and run away but they make up with each other after reus save her from danger, noir develop a crush to reus
vol 12 silver wolf clan village and we will know what kind of monster who kill emilia and reus parent