Haikei, Tengoku no Neesan, Yuusha ni Natta Mei ga Ero Sugite - Ojisan, Hogosha Toka Sorosoro Muri Desu+ - Vol. 1 Ch. 2

[panneqaha]

So is the childhood friend not an option or....?

(Also if they have known each other for so long how did she not know he had a niece?)

She's a childhood friend AND she's a guild receptionist AND they didn't even give her a name when she first showed up. Poor girl has no chance I'm afraid.