Since he's most likely the TRAP MC ends doing in the novel (I've seen the tags). And looking at the cover and stuff, he's most likely the pink haired "loli" from the first chapter. So he will end in MC's harem, as a trap, with his crush.
What I don't know is if MC will let him do the girl when he does him, as in sharing the woman with the trap... But seeing their relationship and the 3some tag on the novel it may be possible... It would be lame tho, since it's netorase = sharing.