Hanbin shared this demo occasionally via a vlive . And the song was found in Eunjiwon's album. The title is worthless. Unfortunately whygee did't credit hanbin.

Worthless_(B.I guide )

비아이 사운드클라우드


hi ~this is just a fan account. 
hanbin's account is '131'
https://soundcloud.com/user-337673291

𝓪𝓵𝓵 𝓪𝓫𝓸𝓾𝓽 𝓹𝓻𝓮𝓬𝓲𝓸𝓾𝓼 𝓶𝓮𝓶𝓸𝓻𝓲𝓮𝓼.:｡+ﾟ
જ⁀➴⊹ ࣪ ˖₊˚⊹♡
soyeonislove @ (여자)아이들 전소연팬💕& 
빈첸's 빨상 💙make it bigger bigger Lee MANTA E blue wave🌊

Worthless_(B.I guide )

hanbinDEMO131