Kyoudai hodo Chikaku Tooimono wa Nai - Vol. 5 Ch. 66 - Everything's been prepared as Mai-chan wants (Part 1)

[MangaDex]

 

[BrunoVilla]

This series is full of perverts! But I root for the MC and his older sister tho.

 

[blablablub]

The nosebleed not only stopped it didn't even leave any stains.

 

[Glomoro]

Pretty good party trick. And now, I shall bleed from my nose enough to die several times over, but I'll survive and the blood will simply vanish! Tada

 

[Wolvenworks]

with that much nosebleed i wonder if you could just bag it and blood-bank it