Rivnes - Vol. 5 Ch. 29 - Me, My Little Sister, and Forest School (1)

[MangaDex]

 

[nurananto]

Thank you.... waiting for next chapter 😉😉

 

[ia_zero]

Superhuman onii-chan escaped again.

 

[nxtfurry]

thank you brotha for tha new chapta

 

[Dwarfy2k]

Oh no are we heading to a love triangle with MC, Asura and this blonde chick friend of the sister?

 

[g4bimaru]

you’re doing the lord’s work, thank you so much

 

[sarusa]

On page 14 the small text is just nuu with dakuten (the double dots) added. Of course neither nu or u have any readings with dakuten (ha goes to ba, ko goes to go, nu goes to ??? nothing). In that case you're supposed to take it as going beyond nu to something even more gutteral, so he's basically going 'nggh' in an extra feral way. You could translate it as GRRR or GROWL or NGHH or similar.