Tensei Shitara Dainana-ouji Dattanode, Kimama ni Majutsu wo Kiwamemasu - Vol. 10 Ch. 87

[MangaDex]

 

[phil777]

So another one who has been "befriended".

 

[MangaKeks]

The day has been saved again through the power of friendship (and also an ungodly amount of eldritch magic power)!

 

[cylnder]

All is well with the power of friendship


(and extreme violence)

 

[randoms986]

So his older sister knows that he is op and maybe is op herself. Neat.

 

[p2x909]

The synopsis on the back of that book looks like an isekai novel title.