No way to log into my LINE account?

I bought a lot of Nintendo stickers but I dont use the LINE app itself because I dont know too many people who use it, but Im a sucker for cute stickers of my fav video games. Id like to be able to use the stickers I purchased from my LINE account with this keyboard, or shop for more stickers without using the main messenger app. Thanks for listening.

s.beiermann about Emoji Keyboard by LINE, v1.0.1